AndreaBozzo/ceres-open-data-index huggingface dataset:
All-Transactions House Price Index for Connecticut

The FHFA House Price Index (FHFA HPI®) is the nation’s only collection of public, freely available house price indexes that measure changes in single-family home values based on data from all 50 states and over 400 American cities that extend back to the mid-1970s.  The FHFA HPI incorporates tens of millions of home sales and offers insights about house price fluctuations at the national, census division, state, metro area, county, ZIP code, and census tract levels.  FHFA uses a fully transparent methodology based upon a weighted, repeat-sales statistical technique to analyze house price transaction data.
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What does the FHFA HPI represent?
The FHFA HPI is a broad measure of the movement of single-family house prices. The FHFA HPI is a weighted, repeat-sales index, meaning that it measures average price changes in repeat sales or refinancings on the same properties. This information is obtained by reviewing repeat mortgage transactions on single-family properties whose mortgages have been purchased or securitized by Fannie Mae or Freddie Mac since January 1975.

The FHFA HPI serves as a timely, accurate indicator of house price trends at various geographic levels. Because of the breadth of the sample, it provides more information than is available in other house price indexes. It also provides housing economists with an improved analytical tool that is useful for estimating changes in the rates of mortgage defaults, prepayments and housing affordability in specific geographic areas.

U.S. Federal Housing Finance Agency, All-Transactions House Price Index for Connecticut [CTSTHPI], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/CTSTHPI, August 2, 2023.
Uniform Chart of Accounts Municipal Spending Data

This dataset contains data for 2014-2019 sourced from the State of Connecticut Uniform Chart of Accounts (UCOA). This system enables the annual collection of unaudited municipal trial balance data at the local account level, along with a mapping, or “cross walk” of that data to a standard, uniform chart of accounts for comparative purposes. This data is collected and stored in a system of databases developed for the Office of Policy and Management (OPM), including a Data Warehouse of financial balances. These balances are recorded at the account level and contain both local and uniform account metadata.

Additional details can be found here: http://www.ct.gov/opm/cwp/view.asp?a=2984&q=576636

Some Municipalities are not included in this release. They can be found here: https://ucoa.ct.gov/benchmarking/#/
Northeast County Lines

Northeastern United States County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label counties 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.)
WW1 Veterans' Questionnaire

This database contains a collection of questionnaires filled out by Connecticut soldiers (or their families) who served in World War I. The first page of the questionnaire itself states: “Compiled by the Department of Historical Records of the Connecticut State Council of Defense, State Library, Harford, where it will be filed, as a permanent memorial of the deeds of Connecticut soldiers and sailors in the service of the federal, state and allied governments during the American participation in the World War.

These questionnaires have been digitized by Ancestry.com
Negative Net Shoreline Movement (meters)

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.
COVID-19 cases, deaths, and recoveries by DDS provider

Laboratory-confirmed COVID-19 cases, associated deaths, and recoveries among Department of Developmental Services (DDS) individuals and staff by DDS provider. 

Recovery is based off of test-based and non-test based strategies detailed in guidance presented by the Centers for Disease Control and Prevention and the CT Department of Public Health.  All data are preliminary, and data for previous dates will be updated as new reports are received and data errors are corrected.

DDS stopped centralized reporting of COVID-19 cases on 4/3/2023.
Department of Correction Quarterly Average Facility Population

CT Department of Correction quarterly average inmate population in State of Connecticut correctional facilities.

Facility Closures: 
Bergin Correctional Institution - August 12, 2011
Enfield Correctional Institution - January 23, 2018
Gates Correctional Institution - June 1, 2011
Niantic Annex - January 8, 2016
Northern Correctional Institution - June 11, 2021
Radgowski Correctional Center - October 5, 2021
Webster Correctional Institution - January 15, 2010
Willard Correctional Institution - April 1, 2023
Toxics Release Inventory Facility List

The Toxics Release Inventory (TRI) tracks the management of certain toxic chemicals that may pose a threat to human health and the environment. Certain industrial facilities in the U.S. must report annually how much of each chemical is recycled, combusted for energy recovery, treated for destruction, and disposed of or otherwise released on- and off-site. This information is collectively referred to as production-related waste managed.

Descriptions of data terms and field names: https://www.epa.gov/toxics-release-inventory-tri-program/descriptions-tri-data-terms-text-version
Factors to consider when using this data: https://www.epa.gov/toxics-release-inventory-tri-program/factors-consider-when-using-toxics-release-inventory-data
Shellfish

Shellfish polygons were digitized from hand drawn polygons representing hardclam, softclam, and oyster beds produced by the Department of Agriculture from their records in 1990 (approximately). The data is general in its nature and should be used only as a guide.This layer should not be construed to depict the actual, absolute locations of any shellfishing resources. Use this layer with other 1:24,000-scale map data such as the Coastal Boundary, Town Boundaries, Roads and Trails, Airports, Railroads and other base map data derived from the USGS 7.5 minute topographic quadrangle maps and compiled at a 1:24000 scale.
Wildlife Action Plan Restore 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>
Childhood Lead Poisoning: Prevalence by Year

As of January 1, 2009, Connecticut law mandates that medical providers must conduct annual lead screening (i.e., blood lead testing) for each child 9 to 35 months of age. Furthermore, the law requires that any child between 36-72 months of age who has not been previously tested must also be tested by the child’s medical provider, regardless of risk.

This dataset shows the prevalence trends of childhood lead poisoning.
Subregional Basin Poly

A standardized mapping of natural drainage basins in Connecticut was completed in 1981 by the Connecticut Department of Environmental Protection (DEP). This drainage basin system divided Connecticut into 8 major basins, 45 regional basins, 337 subregional basins, 2,898 local basins, and 7,067 small drainage basin areas. The statewide mapping of natural drainage basins established a hierarchical system of basins based on drainage area size with large major basins subdivided into regional basins, regional basins subdivided into subregional basins, subregional basins subdivided into local basins, and local basins subdivided into smaller and more numerous drainage basin areas. It includes watersheds for Connecticut rivers, streams, brooks, lakes, reservoirs and ponds included on 1:24,000-scale 7.5 minute topographic quadrangle maps published by the U.S. Geological Survey (USGS) between 1969 and 1984. These basin units include smaller watersheds that drain into many of the small streams and ponds in Connecticut. These basin areas are the building blocks for the larger local, subregional, regional and major drainage basins defined by DEP.

Connecticut Subregional Drainage Basins includes 337 drainage basin areas, the majority of which range from 5 to 70 square miles in size and make up, in order of increasing size the larger regional and major drainage basin areas. The subregional basin number (SBAS_NO) uniquely identifies individual subregional drainage basins and is 4 characters in length. There are 335 unique subregional basin numbers. Examples include 6000 for the Housatonic River Main Stem Subregional Basin, 4300 for the Farmington River Subregional Basin, and 6002 for the Schenob Brook Subregional Basin. The first digit (column 1) designates the major basin, the first two digits (columns 1-2) designate the regional basin, and the first 4 digits (columns 1-4) designate the subregional basin. Note, there are slightly more subregional basin areas delineated (374) than unique subregional basin numbers (335) primarily due to a few stream confluences that split the same local basin into two areas. Refer to the Connecticut Subregional Drainage Basin GIS metadata for more information about drainage basin numbers.

Included with the subregional drainage basin boundaries are Subregional Drainage Basins Direction arrows that depict the general direction of surface water flow towards indivicual subregional drainage basin outlets. Theses arrows are meant to indicate where one basin drains into another and are intended aid in visualizing the network of subregional drainage basins in Connecticut. They do not depict the exact location of basin outlets.

These basin boundaries are the digital equivalent of the major, regional and subregional drainage basin boundaries published on the 1:125,000-scale state map entitled Natural Drainage Basins in Connecticut, McElroy, 1981.
Impaired Estuary 2008

<p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font size='2' style='font-family:inherit;'>Connecticut 303(d) Impaired Waters 2008 is a subset of Connecticut 305(b) Assessed Waters 2008. If any one of the assigned designated uses is categorized as NOT Supporting, the assessed waterbody is included in this subset and is considered impaired. Additional information about Integrated Water Quality reporting is available on the CT DEEP website, <a href='https://portal.ct.gov/DEEP/Water/Water-Quality/Water-Quality-305b-Report-to-Congress' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' rel='nofollow ugc'>Integrated Water Quality Report</a> page. </font></p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font size='2' style='font-family:inherit;'>Connecticut 305(b) Assessed Waters files includes rivers, lakes and estuaries that have been assessed in compliance with Sections 305(b) and 303(d) of the federal Clean Water Act. Section 305(b) of the Clean Water Act requires each state to monitor, assess and report on the quality of its waters relative to attainment of designated uses established by the State's water quality standards. Section 303(d) requires each State to compile a subset of that list identifying only those waters not meeting water quality standards and assign a Total Maximum Daily Load (TMDL) priority ranking to each impaired waterbody.</font></p><p style='margin-top:0px; margin-bottom:1.5rem; font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font size='2' style='font-family:inherit;'>This assessment is based on information collected and compiled prior to 2008. It represents conditions at a particular point in time and does not represent current conditions. Depending on the type of waterbody - river, lake, or estuary - this information geographically displays attainment and non-attainment (e.g. full supporting, not supporting, not assessed) for each designated use - aquatic life, marine aquatic life, recreation use, fish consumption, shellfish harvesting, and drinking water supply.</font></p>
American Recovery and Reinvestment Act of 2009 (ARRA) Criminal Justice Grants

The Connecticut Office of Policy and Management (OPM) was the Connecticut state agency charged with implementing the American Recovery and Reinvestment Act of 2009 (ARRA) for criminal justice and energy programs. 

Approximately $4.3 million of federal funds was distributed to 159 police departments/municipalities with the primary purpose to assist towns with participating in the ARRA of 2009 distribution of criminal justice grant funds. 

This dataset provides detail on criminal justice projects funded through the ARRA.
Federal Impact Reporting: Incidents by Problem Experienced

This dataset summarizes the impact of federal policy and funding changes on nonprofits, municipalities, and businesses in Connecticut, as reported in the Connecticut Office of Policy and Management's Federal Impact Reporting Tool: https://www.appsvcs.opm.ct.gov/FedImpact

This dataset shows the count of reported incidents grouped by problem experienced and is based on the main Federal Impact Reporting dataset here: https://data.ct.gov/Government/Federal-Impact-Reporting/cyas-fb55/about_data

Impacts reported include funding reductions, pauses and delays in accessing funds, as well as employment reductions, and impacts from tariffs.

Duplicate responses to the survey have been removed from this dataset.

More information on the Federal Impact Reporting Tool can be found here: https://portal.ct.gov/governor/news/press-releases/2025/04-2025/governor-lamont-launches-reporting-tool-for-entities-impacted-by-recent-federal-actions
Connecticut and Vicinity County Boundary Set

Connecticut and Vicinity County Boundary data are intended for geographic display of state and county boundaries at statewide and regional levels. Use it to map and label counties 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.)
Central CT 2014 Elevation (DEM)

This image service is available through <a href='https://cteco.uconn.edu' target='_blank' rel='nofollow ugc noopener noreferrer'>CTECO</a>, a partnership between <a href='https://clear.uconn.edu' target='_blank' rel='nofollow ugc noopener noreferrer'>UConn CLEAR</a> and <a href='https://portal.ct.gov/DEEP/GIS-and-Maps/Data/GIS-DATA' target='_blank' rel='nofollow ugc noopener noreferrer'>CT DEEP</a>. This dataset covers 1527 square miles of central Connecticut including the Connecticut River. Raster functions can be applied using the link below.<div><br /><div><div><font color='#104c9b'><b>Dataset Information</b></font><br /></div><div><div><b>Extent:</b> Central Connecticut, 1527 sq miles</div><div><b>Dates:</b> 2014 (April 22 - May 29), leaf on</div><div><b>Data Info:</b> Digital Elevation Model (DEM), which is a bare earth elevation raster, with no functions applied. Functions can be applied to service include aspect, hillshade, shaded relief, and slope. </div><div><b>Pixel Resolution: </b>1 meter DEM raster derived from Lidar point cloud </div><div><b>Projection: </b>UTM Zone 18N, NAD83 2011 meters, NAVD88 meters<br /></div></div><div><b>Service Projection: </b>WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857)<br /></div><div><br /></div><div><b><font color='#104C9B'>More Information</font></b></div><div>- <a href='https://cteco.uconn.edu/data/lidar/functions.htm' target='_blank' rel='nofollow ugc noopener noreferrer'>Raster Functions</a></div><div>- <a href='https://cteco.uconn.edu/data/lidar/info_lidar.htm#central2014' target='_blank' rel='nofollow ugc noopener noreferrer'>More Information</a></div><div>- <a href='https://cteco.uconn.edu/data/lidar/docs/Central2014/USGS_CT_SANDY_PROJECT.xml' target='_blank' rel='nofollow ugc noopener noreferrer'>Metadata</a></div><div><br /></div><div><div><b><font color='#104C9B'>Credit and Funding</font></b><br /></div><div>The United States Geological Survey (USGS). Dewberry collected the data.</div></div></div></div>
Connecticut NWI Wetlands 2024

<div style='text-align:Left;'><div><div><p><span>This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). The National Wetlands Inventory - Version 2, Surface Waters and Wetlands Inventory was derived by retaining the wetland and deepwater polygons that compose the NWI digital wetlands spatial data layer and reintroducing any linear wetland or surface water features that were orphaned from the original NWI hard copy maps by converting them to narrow polygonal features. Additionally, the data are supplemented with hydrography data, buffered to become polygonal features, as a secondary source for any single-line stream features not mapped by the NWI and to complete segmented connections. Wetland mapping conducted in WA, OR, CA, NV and ID after 2012 and most other projects mapped after 2015 were mapped to include all surface water features and are not derived data. The linear hydrography dataset used to derive Version 2 was the U.S. Geological Survey's National Hydrography Dataset (NHD). Specific information on the NHD version used to derive Version 2 and where Version 2 was mapped can be found in the 'comments' field of the Wetlands_Project_Metadata feature class. Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands_Project_Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.</span></p></div></div></div>
Municipal Fiscal Indicators 2014-2018

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). 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, Office of Finance. This database of information includes selected demographic and economic data relating to, or having an impact upon, a municipality’s financial condition. The most recent edition is for the Fiscal Years Ended 2014-2018 published in January, 2020.