AndreaBozzo/ceres-open-data-index huggingface dataset:
Municipal Fiscal Indicators, 2013

Municipal Fiscal Indicators is an annual compendium of information compiled by the Office of Policy and Management, Intergovernmental Policy Division (IGP), Municipal Finance Services Unit (MFS). The data contained in Indicators provides key financial and demographic information on municipalities in Connecticut. Municipal Fiscal Indicators contains the most current financial data available for each of Connecticut's 169 municipalities. The majority of this data was compiled from the audited financial statements that are filed annually with the State of Connecticut, Office of Policy and Management, IGP Division. This database of information includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition.
Prescription Monitoring Program: Controlled Substance Prescriptions by Drug Schedule

This dataset shows the number of prescriptions for each drug schedule category. This only includes dispensations to CT residents reported to the CT Prescription Monitoring & Reporting System (CPMRS).

Controlled substances are classified into 5 drug schedules which are determined by the U.S. Drug Enforcement Administration (DEA) and the CT Drug Control Division. The classification is based on a drug’s medical use and potential for misuse and dependency.

*Please note that in mid-2022, NDC numbers for medical marijuana changed causing the majority of these dispensations to not be categorized as schedule II drugs during that time. Although medical marijuana is a schedule II drug in CT, these dispensations will be reported out separately beginning in 2023.*
Patents by Connecticut Inventors 1800-1890

Connecticut Patents 1800-1890

This list was compiled by Museum of Connecticut History staff in the 1990s, and lists all patents by Connecticut inventors between the years of 1800-1890. This period spans a time of incredible industrial growth and inventiveness in Connecticut, and the Yankee ingenuity on display in these patents helped make the state one of the premier industrial centers of the nation and the world.

Many of the pre-1836 patents listed here are only known because of annual lists of patents or patent digests that were published by the Patent Office. The actual records were destroyed in a fire in 1836, and many were never reconstructed. All of the pre-1836 patents are known as the “X-Patents,” and those that have been recovered were given patent numbers beginning with the letter X. 

Patents up to this time had not actually had numbers of any kind, they were simply known by date and title. About five months before the fire, the Patent Office began numbering their patents; this system, now up to seven digits, is still in use today.

Patents found in this dataset can be found using the <a href=”https://www.uspto.gov/patents/search/patent-public-search”>Patent Public Search tool</A> on the U.S. Patent Office’s website. The easiest way to locate a patent is to enter the seven-digit serial number into the basic search.

The Connecticut Patents 1800-1890 dataset contains names of inventors, assignees if relevant (inventors could “assign” ownership of patents to another person or entity), descriptions of the invention, patent numbers (if available), and date of issue. It also contains a two-digit class code that corresponds to a general subject area. The subjects are:

01 Firearms, guns, cannons, etc.
02 Metallurgy, metalworking, etc.
03 Woodworking, sawmills, etc.
04 Weaving, sewing, looms, etc.
05 Steam boilers, engines
06 Railroads
07 Ships, boats, canals
08 Clothing
09 Agriculture
10 Hardware, tools, etc.
11 Tanning
12 Rubber
13 Musical instruments
14 Medical
15 Foods and cooking
16 Business and labor
17 Clocks
18 Fireplaces, stoves, furnaces, etc.
19 Lanterns, lamps, and lighting
20 Furniture
21 Household items
22 Doors, windows, drawers, trunks, etc.
23 Grinding mills
24 Stonemasonry, mining, etc.
25 Vehicles, non-motorized
26 Chemical processes? Explosives, distilling, paintmaking, etc.
27 Plumbing, pipes, hoses, etc. and water-powered devices
28 Printing, bookmaking, and paper
29 Engines, coolers, elevators, pneumatics, etc.
30 Ivory
31 Military equipment (non-weapons)
32 Sewing machines
33 Toys, games, and leisure (includes bicycles)
34 Equipment for horses
35 Photography
36 Glassware
37 [doesn't exist]
38 Electricity and electronics
39 Telephones
40 Fire safety
41 Construction
42 School equipment
43 Art
CT Shorelines: 1983-2006

Shorelines are continuously moving in response to winds, waves, tides, sediment supply, changes in relative sea level, and human activities. Shoreline changes are generally not constant through time and frequently switch from negative (erosion) to positive (accretion) and vice versa. Cyclic and non-cyclic processes change the position of the shoreline over a variety of timescales, from the daily and seasonal effects of winds and waves, to changes in sea level over a century to thousands of years. The shoreline "rate of change" statistic thus reflects a cumulative summary of the processes that altered the shoreline for the time period analyzed.
Connecticut Neighboring Towns

This dataset provides the neighboring relationships between towns, with each row representing a unique town-to-neighbor connection. It includes columns for the town's name and the corresponding neighboring town name. Most towns have more than one neighbor, so there will be multiple rows for each town.

See the "Attachments" section below to download a pivoted version of this dataset named "CT Neighboring Towns in Wide Format". This includes one row for each town, a column for each neighboring town, and a total sum of neighboring towns.
Migratory Waterfowl

Migratory Waterfowl is a 1:24,000-scale, polygon feature-based layer that depicts the concentration areas of migratory waterfowl at specific locations within Connecticut. Paul Merola, former DEP Wildlife Biologist, and Greg Chasko, DEP Wildlife Biologist, identified the migratory waterfowl concentration areas based on the Northeast Coastal Areas Study, Joseph Dowhan, 1991 (see Supplemental Information) as well as by using midwinter surveys, breeding surveys and personal observations. The concentration areas are primarily found along the shoreline and the lower tributaries and wetlands of major Connecticut rivers. In addition to depicting the concentration areas, the potential waterfowl species associated with each polygon have been identified and are listed in the attribute table as boolean values indicating their presence or absence. The intent of this datalayer is to assist in the identification of migratory waterfowl resource areas in the event of an oil spill or other condition that might be a threat to waterfowl species. This layer identifies conditions at a particular point in time. It is not updated and it is not a complete representation of all areas of migratory waterfowl in Connecticut.
Salt Water Limit

Salt Water Limit is a 1:24000-scale, line feature-based layer that depicts the approximate salt water limits of watercourses and embayments in coastal Connecticut. It is important to note that the exact demarcation of the salt-water extent is often not accurate. As stated in the report known as Source 1 in this metadata ("The Boundary Between Freshwater and Saltwater in Connecticut"): "Any definition and demarcation of the boundary between saltwater and freshwater is, of necessity, an approximation. The boundary is transitory and, at times, vague. Within a given body of water, it may vary from day to day, season to season, and year to year, according to such predictable and unpredictable factors as tidal magnitude, rate of evaporation, climatological and meteorological factors, estuarine circulation patterns, and the degree of vertical salinity stratification. An exact delimitation of the upstream limits of saltwater would be a difficult task and one that is probably not necessary for the purposes of coastal management in Connecticut. However, since the primary goal of Connecticut's Coastal Area Management Program is to provide for the balanced, coordinated management of coastal resources, the coastal waters of the state must be clearly and uniformly defined as required in federal and state legislation."
The source data for this layer (a compilation of reports and maps) varied in cartographic scale and age but features were digitized onto standard 1:24,000 scale US Geological Survey (USGS) topographic quadrangle maps. Because of this, the layer does not represent conditions at any particular point in time, nor does every waterbody have an associated salt water extent. This data layer has been updated in 2005 to include more robust attribute information, but no further updates are planned.
Attribute information is comprised of an AV_LEGEND attribute that identifies the feature as the salt water extent ("Salt Limit"), eight "DATASRC[1-8]" attributes that contain a boolean (0,1) value identifying whether or not that particular source was used, a NOTES attribute for additional data source descriptions, a QUADNUMBER attribute and a QUAD_NAME attribute.
Environmental Justice Distressed Municipalities 2021

Environmental Justice Block Groups 2021 was created from Connecticut block group boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles. The poverty data used to determine which block groups qualified as EJ communities (see CT State statute 22a-20a) was based on the Census Bureau's 2019 ACS 5-year estimate- Table C17002. This poverty data was joined with the block group boundaries in ArcMap. Block groups in which the percent of the population below 200% of the federal poverty level was greater than or equal to 30.0 were selected and the resulting selection was exported as a new shapefile. The block groups were then clipped so that only those block groups outside of distressed municipalities were displayed. Maintenance – This layer will be updated annually and will coincide with the annual distressed municipalities update (around August/September). The latest ACS 5-year estimate data should be used to update this layer.

Environmental Justice Distressed Municipalities 2021 was created from Connecticut town boundary data located in the Census Bureau's 2019 TIGER/Line Shapefiles (County Subdivisions). <div><br /></div><div>From this shapefile, &quot;select by attribute&quot; was used to select the distressed municipalities by town name (note: the list of 2021 distressed municipalities was provided by the CT Department of Economic and Community Development). The selection was then exported a new shapefile. The “Union” tool was used to unite the new shapefile with tribal lands (American Indian Area Geography) boundary data from the 2019 TIGER/Line files. In the resulting layer, the tribal lands were deleted so only the distressed municipalities remained. Maintenance – This layer will be updated annually when the DECD produces its new list of distressed municipalities (around August/September).</div>
The Wooden Nutmeg

ConnDoc F761wn

To access dataset select the "Data" tab. To view original files please contact the Connecticut State Library at 860-757-6500.

The Nutmeg also known as The Wooden Nutmeg was published irregularly from 1923 to 1947. The purpose of the publication was to give the fire wardens of Connecticut an opportunity to become acquainted with each other. As noted in issue number 1 (October 1923) "it is the purpose of the publication to collect the wisdom and experiences of the fire wardens in Connecticut in order to make them available to all." The content of the publication is varied and includes information and updates about forestry, forest fires, conservation and general news items.
This index lists the year, month, issue, title, author and subject/keyword if indicated.

Visit the State Agency Profiles page for the Commission on Forest and Wildlife and the  State Park and Forest Commission for statutory authority, agency history, published history and articles, agency documents and list of commissioners.

Please click on article titles to be redirected to the digitized item. Not all publications have been digitized.
Wildlife Action Plan Protect Conservation Opportunity 2025

<p>The 2025 Connecticut State Wildlife Action Plan conservation opportunity areas (COAs) represent locations partners can conduct actions to benefit wildlife populations and habitats and achieve State Wildlife Action Plan Goals. There are 7 total COAs that represent broad actions: protect, connect, restore, manage, partner, inform, and research and monitor. This effort combined ecological and social data in a spatial prioritization software called Zonation to identify priority areas that reflect the 7 actions. Each COA has different ecological and/or social data included to reflect its unique goal.&nbsp;</p>
Mill Rates for FY 2014-2026

A mill is equal to $1.00 of tax for each $1,000 of assessment. To calculate the property tax, multiply the assessment of the property by the mill rate and divide by 1,000. For example, a property with an assessed value of $50,000 located in a municipality with a mill rate of 20 mills would have a property tax bill of $1,000 per year.

The rates for each year are based on the grand list from two years prior. For example, the mill rates for the 2021 fiscal year are based off the 2019 grand list.

Starting in FY 2017, legislation allows municipalities and special taxing districts to tax motor vehicles at a different rate than other taxable property, but it imposes a cap on the mill rate for motor vehicles. No district or borough may set a motor vehicle mill rate that if combined with the motor vehicle mill rate of the town, city, consolidated town and city or consolidated town and borough in which such district or borough is located would result in a combined motor vehicle mill rate above the cap.
CT Vicinity Town Polygon

Connecticut and Vicinity Town Boundary data are intended for geographic display of state, county and town (municipal) boundaries at statewide and regional levels. Use it to map and label towns on a map. These data are derived from Northeastern United States Political Boundary Master layer.
This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
Municipal Fiscal Indicators: Individual Town Data, 2014-2023

Municipal Fiscal Indicators is an annual compendium of information compiled by the Office of Policy and Management, Office of Finance, Municipal Finance Services Unit (MFS). Municipal Fiscal Indicators contains the most current financial data available for each of Connecticut's 169 municipalities.

The data contained in Indicators provides key financial and demographic information on municipalities in Connecticut. The data includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition.

The majority of this data was compiled from the audited financial statements that are filed annually with the State of Connecticut, Office of Policy and Management, Office of Finance. Unlike prior years' where the audited financial information was compiled by OPM, the FY 2020 and beyond information in this edition was based upon the self-reporting by municipalities of their own audited data.

The most recent edition is for the Fiscal Years Ended 2019-2023 published in September 2025.

The most recent data on the Municipal Fiscal Indicators is included in the following datasets:

The most recent data on the Municipal Fiscal Indicators is included in the following datasets:

Municipal-Fiscal-Indicators: Financial Statement Information, 2020-2023
https://data.ct.gov/d/d6pe-dw46

Municipal-Fiscal-Indicators: Uniform Chart of Accounts, 2020-2023
https://data.ct.gov/d/e2qt-k238

Municipal Fiscal Indicators: Pension Funding Information for Defined Benefit Pension Plans, 2020-2023
https://data.ct.gov/d/73q3-sgr8

Municipal Fiscal Indicators: Type and Number of Pension Plans, 2020-2023
https://data.ct.gov/d/i84g-vvfb

Municipal Fiscal Indicators: Other Post-Employment Benefits (OPEB), 2020-2023
https://data.ct.gov/d/ei7n-pnn9

Municipal Fiscal Indicators: Economic and Grand List Data, 2019-2025
https://data.ct.gov/d/xgef-f6jp

Municipal Fiscal Indicators: Benchmark Labor Data, 2019-2024
https://data.ct.gov/d/5ijb-j6bn

Municipal Fiscal Indicators: Bond Ratings, 2019-2023
https://data.ct.gov/d/a65i-iag5

Municipal Fiscal Indicators: Individual Town Data, 2014-2023
https://data.ct.gov/d/ej6f-y2wf

Municipal Fiscal Indicators: Totals and Averages, 2014-2023
https://data.ct.gov/d/ryvc-y5rf
Municipal Fiscal Indicators: Other Post-Employment Benefits (OPEB), 2020-2023

Municipal Fiscal Indicators is an annual compendium of information compiled by the Office of Policy and Management, Office of Finance, Municipal Finance Services Unit (MFS). Municipal Fiscal Indicators contains the most current financial data available for each of Connecticut's 169 municipalities.

The data contained in Indicators provides key financial and demographic information on municipalities in Connecticut. The data includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition.

Other Post-Employment Benefits (OPEB) for Connecticut Municipalities, compiled by the CT Office of Policy and Management in the annual Municipal Fiscal Indicators report.

Post-employment benefits are typically provided by municipalities to former employees or their beneficiaries as compensation for services rendered while these employees were still active. These benefits are generally divided into two broad categories – pension benefits (retirement income) and Other Post-employment Benefits (postemployment benefits other than pensions, referenced as OPEB). Forms of OPEB typically include healthcare benefits and benefits such as disability and life insurance provided outside of the pension plan.

The majority of this data was compiled from the audited financial statements that are filed annually with the State of Connecticut, Office of Policy and Management, Office of Finance. Unlike prior years' where the audited financial information was compiled by OPM, the FY 2020 and beyond information in this edition was based upon the self-reporting by municipalities of their own audited data.

The most recent edition is for the Fiscal Years Ended 2019-2023 published in September 2025.

The most recent data on the Municipal Fiscal Indicators is included in the following datasets:

The most recent data on the Municipal Fiscal Indicators is included in the following datasets:

Municipal-Fiscal-Indicators: Financial Statement Information, 2020-2023
https://data.ct.gov/d/d6pe-dw46

Municipal-Fiscal-Indicators: Uniform Chart of Accounts, 2020-2023
https://data.ct.gov/d/e2qt-k238

Municipal Fiscal Indicators: Pension Funding Information for Defined Benefit Pension Plans, 2020-2023
https://data.ct.gov/d/73q3-sgr8

Municipal Fiscal Indicators: Type and Number of Pension Plans, 2020-2023
https://data.ct.gov/d/i84g-vvfb

Municipal Fiscal Indicators: Other Post-Employment Benefits (OPEB), 2020-2023
https://data.ct.gov/d/ei7n-pnn9

Municipal Fiscal Indicators: Economic and Grand List Data, 2019-2025
https://data.ct.gov/d/xgef-f6jp

Municipal Fiscal Indicators: Benchmark Labor Data, 2019-2024
https://data.ct.gov/d/5ijb-j6bn

Municipal Fiscal Indicators: Bond Ratings, 2019-2023
https://data.ct.gov/d/a65i-iag5

Municipal Fiscal Indicators: Individual Town Data, 2014-2023
https://data.ct.gov/d/ej6f-y2wf

Municipal Fiscal Indicators: Totals and Averages, 2014-2023
https://data.ct.gov/d/ryvc-y5rf
COVID-19 Cases in CT Schools (Statewide), 2020-2021 School Year - Archive

This dataset provides the number of weekly COVID-19 cases for staff and students in CT public and private PK-12 schools.

As of 6/24/2021, COVID-19 school-based surveillance activities for the 2020 – 2021 academic year has ended.  The Connecticut Department of Public Health along with the Connecticut State Department of Education are planning to resume these activities at the start of the 2021 – 2022 academic year.

Data for the 2021-2022 school year is available here: https://data.ct.gov/Health-and-Human-Services/COVID-19-Cases-in-CT-Schools-Statewide-2021-2022-S/72vp-djx5
Juvenile Justice Policy and Oversight Committee Equity Metrics - Delinquent Referrals

Connecticut's Juvenile Justice Policy and Oversight Committee (JJPOC) has developed this dataset and this <a href ="https://data.ct.gov/stories/s/JJPOC-Equity-Dashboard-Delinquent-Referrals/efuz-5jhe/">dashboard</a> to monitor and examine juvenile justice system involvement across the state for youth of different races, ethnicities, and genders. 

The following metrics were chosen to understand key points in the juvenile justice system: 

1. Delinquent referrals
2. Non-judicial handling
3. Disposition of a first time felony
4. Detention

Note: this dataset and the dashboard are being developed in phases, and as of 1/27/2023 they include data on Metric 1: Delinquent referrals and Metric 2: First Time Felony Dispositions. Additional metrics will be added over the course of 2023 and 2024.
Juvenile Justice Policy and Oversight Committee (JJPOC) Equity Dashboard

This dashboard provides aggregate, descriptive statistics that enable policymakers and public users access to juvenile justice system trends organized by demographic groupings. The dashboard sources data from juvenile justice proceedings throughout the state of Connecticut and provides information to users statewide. The dashboard uses the following four juvenile justice indicators to present equity measures at critical decision points in Connecticut's juvenile justice system: Delinquent Referrals, Detention, Non-Judicial Handling, and Disposition of First-Time Felony.
Municipal Fiscal Indicators Dashboard

Municipal Fiscal Indicators is an annual compendium of information compiled by the Office of Policy and Management, Office of Finance, Municipal Finance Services Unit (MFS). Municipal Fiscal Indicators contains the most current financial data available for each of Connecticut's 169 municipalities.

The data contained in Indicators provides key financial and demographic information on municipalities in Connecticut. The data includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition.
Connecticut and Vicinity State Boundary Set

Connecticut and Vicinity State Boundary data are intended for geographic display of state boundaries at statewide and regional levels. Use it to map and label states on a map. These data are derived from Northeastern United States Political Boundary Master layer.
This information should be displayed and analyzed at scales appropriate for 1:24,000-scale data. The State of Connecticut, Department of Environmental Protection (CTDEP) assembled this regional data layer using data from other states in order to create a single, seamless representation of political boundaries within the vicinity of Connecticut that could be easily incorporated into mapping applications as background information. More accurate and up-to-date information may be available from individual State government Geographic Information System (GIS) offices. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)