# Michigan statistical areas

The U.S. State of Michigan currently has 43 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated eight combined statistical areas, 16 metropolitan statistical areas, and 19 micropolitan statistical areas in Michigan. As of 2023, the largest of these was the Detroit-Warren-Ann Arbor, MI CSA, comprising the area surrounding Michigan's largest city, Detroit.

## Background

The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico. These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau, planning organizations, and federal, state, and local government entities.
The OMB defines a core-based statistical area (commonly referred to as a CBSA) as the county or counties (or county-equivalents) surrounding at least one densely-settled core of at least 10,000 population, "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core". The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.
The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%. The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.

## Table

The 43 United States statistical areas and 83 counties of the State of Michigan :
| Combined statistical area | 2023 population (est.) | Core-based statistical area | 2023 population (est.) | County | 2023 population (est.) | Metropolitan division | 2023 population (est.) |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | Oakland County, Michigan | 1,270,426 | Warren-Troy-Farmington Hills, MI MD | 2,591,135 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | Macomb County, Michigan | 875,101 | Warren-Troy-Farmington Hills, MI MD | 2,591,135 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | Livingston County, Michigan | 196,757 | Warren-Troy-Farmington Hills, MI MD | 2,591,135 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | St. Clair County, Michigan | 159,874 | Warren-Troy-Farmington Hills, MI MD | 2,591,135 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | Lapeer County, Michigan | 88,977 | Warren-Troy-Farmington Hills, MI MD | 2,591,135 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | Wayne County, Michigan | 1,751,169 | Detroit-Dearborn-Livonia, MI MD | 1,751,169 |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Flint, MI MSA | 401,522 | Genesee County, Michigan | 401,522 | none | none |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Ann Arbor, MI MSA | 365,536 | Washtenaw County, Michigan | 365,536 | none | none |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Monroe, MI MSA | 155,045 | Monroe County, Michigan | 155,045 | none | none |
| Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | Adrian, MI μSA | 97,250 | Lenawee County, Michigan | 97,250 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | Kent County, Michigan | 661,354 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | Ottawa County, Michigan | 303,372 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | Montcalm County, Michigan | 68,154 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | Ionia County, Michigan | 66,262 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | Barry County, Michigan | 63,808 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Muskegon-Norton Shores, MI MSA | 176,564 | Muskegon County, Michigan | 176,564 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Holland, MI μSA | 121,939 | Allegan County, Michigan | 121,939 | none | none |
| Grand Rapids-Wyoming, MI CSA | 1,502,552 | Big Rapids, MI μSA | 41,099 | Mecosta County, Michigan | 41,099 | none | none |
| Lansing-East Lansing-Owosso, MI CSA | 541,202 | Lansing-East Lansing, MI MSA | 473,177 | Ingham County, Michigan | 284,637 | none | none |
| Lansing-East Lansing-Owosso, MI CSA | 541,202 | Lansing-East Lansing, MI MSA | 473,177 | Eaton County, Michigan | 108,820 | none | none |
| Lansing-East Lansing-Owosso, MI CSA | 541,202 | Lansing-East Lansing, MI MSA | 473,177 | Clinton County, Michigan | 79,720 | none | none |
| Lansing-East Lansing-Owosso, MI CSA | 541,202 | Owosso, MI μSA | 68,025 | Shiawassee County, Michigan | 68,025 | none | none |
| Kalamazoo-Battle Creek-Portage, MI CSA | 456,459 | Kalamazoo-Portage, MI MSA | 262,215 | Kalamazoo County, Michigan | 262,215 | none | none |
| Kalamazoo-Battle Creek-Portage, MI CSA | 456,459 | Battle Creek, MI MSA | 133,366 | Calhoun County, Michigan | 133,366 | none | none |
| Kalamazoo-Battle Creek-Portage, MI CSA | 456,459 | Sturgis, MI μSA | 60,878 | St. Joseph County, Michigan | 60,878 | none | none |
| Saginaw-Midland-Bay City, MI CSA | 374,321 | Saginaw, MI MSA | 187,782 | Saginaw County, Michigan | 187,782 | none | none |
| Saginaw-Midland-Bay City, MI CSA | 374,321 | Bay City, MI MSA | 102,500 | Bay County, Michigan | 102,500 | none | none |
| Saginaw-Midland-Bay City, MI CSA | 374,321 | Midland, MI MSA | 84,039 | Midland County, Michigan | 84,039 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | South Bend-Mishawaka, IN-MI MSA | 324,490 51,642 (MI) | St. Joseph County, Indiana | 272,848 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | South Bend-Mishawaka, IN-MI MSA | 324,490 51,642 (MI) | Cass County, Michigan | 51,642 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | Elkhart-Goshen, IN MSA | 206,409 | Elkhart County, Indiana | 206,409 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | Niles, MI MSA | 152,261 | Berrien County, Michigan | 152,261 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | Warsaw, IN μSA | 80,364 | Kosciusko County, Indiana | 80,364 | none | none |
| South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 203,903 (MI) | Plymouth, IN μSA | 46,352 | Marshall County, Indiana | 46,352 | none | none |
| none | none | Jackson, MI MSA | 159,424 | Jackson County, Michigan | 159,424 | none | none |
| none | none | Traverse City, MI MSA | 156,371 | Grand Traverse County, Michigan | 96,421 | none | none |
| none | none | Traverse City, MI MSA | 156,371 | Leelanau County, Michigan | 23,019 | none | none |
| none | none | Traverse City, MI MSA | 156,371 | Kalkaska County, Michigan | 18,490 | none | none |
| none | none | Traverse City, MI MSA | 156,371 | Benzie County, Michigan | 18,441 | none | none |
| Mount Pleasant-Alma, MI CSA | 105,486 | Mount Pleasant, MI μSA | 64,118 | Isabella County, Michigan | 64,118 | none | none |
| Mount Pleasant-Alma, MI CSA | 105,486 | Alma, MI μSA | 41,368 | Gratiot County, Michigan | 41,368 | none | none |
| none | none | Marquette, MI μSA | 66,999 | Marquette County, Michigan | 66,999 | none | none |
| none | none | Cadillac, MI μSA | 49,433 | Wexford County, Michigan | 34,122 | none | none |
| none | none | Cadillac, MI μSA | 49,433 | Missaukee County, Michigan | 15,311 | none | none |
| Marinette-Iron Mountain, WI-MI CSA | 95,715 48,927 (MI) | Marinette, WI-MI μSA | 65,051 22,945 (MI) | Marinette County, Wisconsin | 42,106 | none | none |
| Marinette-Iron Mountain, WI-MI CSA | 95,715 48,927 (MI) | Marinette, WI-MI μSA | 65,051 22,945 (MI) | Menominee County, Michigan | 22,945 | none | none |
| Marinette-Iron Mountain, WI-MI CSA | 95,715 48,927 (MI) | Iron Mountain, MI-WI μSA | 30,664 25,982 (MI) | Dickinson County, Michigan | 25,982 | none | none |
| Marinette-Iron Mountain, WI-MI CSA | 95,715 48,927 (MI) | Iron Mountain, MI-WI μSA | 30,664 25,982 (MI) | Florence County, Wisconsin | 4,682 | none | none |
| none | none | Hillsdale, MI μSA | 45,587 | Hillsdale County, Michigan | 45,587 | none | none |
| none | none | Coldwater, MI μSA | 45,215 | Branch County, Michigan | 45,215 | none | none |
| none | none | Houghton, MI μSA | 39,771 | Houghton County, Michigan | 37,599 | none | none |
| none | none | Houghton, MI μSA | 39,771 | Keweenaw County, Michigan | 2,172 | none | none |
| none | none | Escanaba, MI μSA | 36,790 | Delta County, Michigan | 36,790 | none | none |
| none | none | Sault Ste. Marie, MI μSA | 36,264 | Chippewa County, Michigan | 36,264 | none | none |
| none | none | Petoskey, MI μSA | 34,123 | Emmet County, Michigan | 34,123 | none | none |
| none | none | Ludington, MI μSA | 29,159 | Mason County, Michigan | 29,159 | none | none |
| none | none | Alpena, MI μSA | 28,904 | Alpena County, Michigan | 28,904 | none | none |
| none | none | none | none | Van Buren County, Michigan | 75,798 | none | none |
| none | none | none | none | Tuscola County, Michigan | 52,826 | none | none |
| none | none | none | none | Newaygo County, Michigan | 51,108 | none | none |
| none | none | none | none | Sanilac County, Michigan | 40,368 | none | none |
| none | none | none | none | Clare County, Michigan | 31,316 | none | none |
| none | none | none | none | Huron County, Michigan | 30,927 | none | none |
| none | none | none | none | Oceana County, Michigan | 26,981 | none | none |
| none | none | none | none | Charlevoix County, Michigan | 26,159 | none | none |
| none | none | none | none | Cheboygan County, Michigan | 26,048 | none | none |
| none | none | none | none | Gladwin County, Michigan | 25,853 | none | none |
| none | none | none | none | Otsego County, Michigan | 25,747 | none | none |
| none | none | none | none | Manistee County, Michigan | 25,562 | none | none |
| none | none | none | none | Iosco County, Michigan | 25,373 | none | none |
| none | none | none | none | Antrim County, Michigan | 24,409 | none | none |
| none | none | none | none | Roscommon County, Michigan | 23,863 | none | none |
| none | none | none | none | Osceola County, Michigan | 23,330 | none | none |
| none | none | none | none | Ogemaw County, Michigan | 20,990 | none | none |
| none | none | none | none | Arenac County, Michigan | 15,145 | none | none |
| none | none | none | none | Gogebic County, Michigan | 14,224 | none | none |
| none | none | none | none | Crawford County, Michigan | 13,538 | none | none |
| none | none | none | none | Presque Isle County, Michigan | 13,285 | none | none |
| none | none | none | none | Lake County, Michigan | 12,734 | none | none |
| none | none | none | none | Iron County, Michigan | 11,740 | none | none |
| none | none | none | none | Mackinac County, Michigan | 10,851 | none | none |
| none | none | none | none | Alcona County, Michigan | 10,489 | none | none |
| none | none | none | none | Montmorency County, Michigan | 9,678 | none | none |
| none | none | none | none | Alger County, Michigan | 8,757 | none | none |
| none | none | none | none | Oscoda County, Michigan | 8,545 | none | none |
| none | none | none | none | Baraga County, Michigan | 8,310 | none | none |
| none | none | none | none | Schoolcraft County, Michigan | 8,149 | none | none |
| none | none | none | none | Luce County, Michigan | 6,435 | none | none |
| none | none | none | none | Ontonagon County, Michigan | 5,906 | none | none |
| State of Michigan | State of Michigan | State of Michigan | State of Michigan | State of Michigan | 10,037,261 | none | none |

## Core-based statistical areas

The following table provides the in-state population ranking of each CBSA along with its rate of population change over time.
The 35 core-based statistical areas of the State of Michigan :
| 2023 rank | Core-based statistical area | Population | Population | Population | Population | Population |
| 2023 rank | Core-based statistical area | 2023 estimate | Change | 2020 Census | Change | 2010 Census |
| 1 | Detroit-Warren-Dearborn, MI MSA | 4,342,304 | −1.13% | 4,392,041 | +2.23% | 4,296,250 |
| 2 | Grand Rapids-Wyoming-Kentwood, MI MSA | 1,162,950 | +1.12% | 1,150,015 | +9.23% | 1,052,843 |
| 3 | Lansing-East Lansing, MI MSA | 473,177 | −0.01% | 473,203 | +1.98% | 464,036 |
| 4 | Flint, MI MSA | 401,522 | −1.15% | 406,211 | −4.60% | 425,790 |
| 5 | Ann Arbor, MI MSA | 365,536 | −1.81% | 372,258 | +7.97% | 344,791 |
| 6 | Kalamazoo-Portage, MI MSA | 262,215 | +0.21% | 261,670 | +4.53% | 250,331 |
| 7 | Saginaw, MI MSA | 187,782 | −1.23% | 190,124 | −5.02% | 200,169 |
| 8 | Muskegon-Norton Shores, MI MSA | 176,564 | +0.42% | 175,824 | +2.11% | 172,188 |
| 9 | Jackson, MI MSA | 159,424 | −0.59% | 160,366 | +0.07% | 160,248 |
| 10 | Traverse City, MI MSA | 156,371 | +1.90% | 153,448 | +7.03% | 143,372 |
| 11 | Monroe, MI MSA | 155,045 | +0.15% | 154,809 | +1.83% | 152,021 |
| 12 | Niles, MI MSA | 152,261 | −1.33% | 154,316 | −1.59% | 156,813 |
| 13 | Battle Creek, MI MSA | 133,366 | −0.70% | 134,310 | −1.35% | 136,146 |
| 14 | Holland, MI μSA | 121,939 | +1.19% | 120,502 | +8.16% | 111,408 |
| 15 | Bay City, MI MSA | 102,500 | −1.31% | 103,856 | −3.63% | 107,771 |
| 16 | Adrian, MI μSA | 97,520 | −1.91% | 99,423 | −0.47% | 99,892 |
| 17 | Midland, MI MSA | 84,039 | +0.65% | 83,494 | −0.16% | 83,629 |
| 18 | Owosso, MI μSA | 68,025 | −0.10% | 68,094 | −3.62% | 70,648 |
| 19 | Marquette, MI μSA | 66,999 | +1.49% | 66,017 | −1.58% | 67,077 |
| 20 | Mount Pleasant, MI μSA | 64,118 | −0.43% | 64,394 | −8.42% | 70,311 |
| 21 | Sturgis, MI μSA | 60,878 | −0.10% | 60,939 | −0.58% | 61,295 |
| 22 | South Bend-Mishawaka, IN-MI MSA (MI) | 51,642 | +0.10% | 51,589 | −1.35% | 52,293 |
| 23 | Cadillac, MI μSA | 49,433 | +1.45% | 48,725 | +2.40% | 47,584 |
| 24 | Hillsdale, MI μSA | 45,587 | −0.35% | 45,746 | −2.02% | 46,688 |
| 25 | Coldwater, MI μSA | 45,215 | +0.79% | 44,862 | −0.85% | 45,248 |
| 26 | Alma, MI μSA | 41,368 | −0.94% | 41,761 | −1.68% | 42,476 |
| 27 | Big Rapids, MI μSA | 41,099 | +3.49% | 39,714 | −7.21% | 42,798 |
| 28 | Houghton, MI μSA | 39,771 | +0.92% | 39,407 | +1.61% | 38,784 |
| 29 | Escanaba, MI μSA | 36,790 | −0.31% | 36,903 | −0.45% | 37,069 |
| 30 | Sault Ste. Marie, MI μSA | 36,264 | −1.42% | 36,785 | −4.50% | 38,520 |
| 31 | Petoskey, MI μSA | 34,123 | +0.03% | 34,112 | +4.34% | 32,694 |
| 32 | Ludington, MI μSA | 29,159 | +0.37% | 29,052 | +1.21% | 28,705 |
| 33 | Alpena, MI μSA | 28,904 | −0.01% | 28,907 | −2.33% | 29,598 |
| 34 | Iron Mountain, MI-WI μSA (MI) | 25,982 | +0.13% | 25,947 | −0.84% | 26,168 |
| 35 | Marinette, WI-MI μSA (MI) | 22,945 | −2.37% | 23,502 | −2.19% | 24,029 |
| | Iron Mountain, MI-WI μSA | 30,664 | +0.52% | 30,505 | −0.28% | 30,591 |
| | Marinette, WI-MI μSA | 65,051 | −0.49% | 65,374 | −0.61% | 65,778 |
| | South Bend-Mishawaka, IN-MI MSA | 324,490 | 0.00% | 324,501 | +1.65% | 319,224 |

## Combined statistical areas

The following table provides the in-state population ranking of each CSA along with its rate of population change over time.
The eight combined statistical areas of the State of Michigan :
| 2023 rank | Combined statistical area | Population | Population | Population | Population | Population |
| 2023 rank | Combined statistical area | 2023 estimate | Change | 2020 Census | Change | 2010 Census |
| 1 | Detroit-Warren-Ann Arbor, MI CSA | 5,361,927 | −1.16% | 5,424,742 | +1.99% | 5,318,744 |
| 2 | Grand Rapids-Wyoming, MI CSA | 1,502,552 | +1.11% | 1,486,055 | +7.74% | 1,379,237 |
| 3 | Lansing-East Lansing-Owosso, MI CSA | 541,202 | −0.02% | 541,297 | +1.24% | 534,684 |
| 4 | Kalamazoo-Battle Creek-Portage, MI CSA | 456,459 | −0.10% | 456,919 | +2.04% | 447,772 |
| 5 | Saginaw-Midland-Bay City, MI CSA | 374,321 | −0.84% | 377,474 | −3.60% | 391,569 |
| 6 | South Bend-Elkhart-Mishawaka, IN-MI CSA (MI) | 203,903 | −0.97% | 205,905 | −1.53% | 209,106 |
| 7 | Mount Pleasant-Alma, MI CSA | 105,486 | −0.63% | 106,155 | −5.88% | 112,787 |
| 8 | Marinette-Iron Mountain, WI-MI CSA (MI) | 48,927 | −1.06% | 49,449 | −1.49% | 50,197 |
| | Marinette-Iron Mountain, WI-MI CSA | 95,715 | −0.17% | 95,879 | −0.51% | 96,369 |
| | South Bend-Elkhart-Mishawaka, IN-MI CSA | 809,876 | −0.29% | 812,199 | +1.78% | 798,005 |