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.

Statistical areas

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.

The 43 United States statistical areas and 83 counties of the State of Michigan
Combined statistical area2023 population (est.)Core-based statistical area2023 population (est.)County2023 population (est.)Metropolitan division2023 population (est.)
Detroit-Warren-Ann Arbor, MI CSA5,361,927Detroit-Warren-Dearborn, MI MSA4,342,304Oakland County, Michigan1,270,426Warren-Troy-Farmington Hills, MI MD2,591,135
Macomb County, Michigan875,101
Livingston County, Michigan196,757
St. Clair County, Michigan159,874
Lapeer County, Michigan88,977
Wayne County, Michigan1,751,169Detroit-Dearborn-Livonia, MI MD1,751,169
Flint, MI MSA401,522Genesee County, Michigan401,522none
Ann Arbor, MI MSA365,536Washtenaw County, Michigan365,536
Monroe, MI MSA155,045Monroe County, Michigan155,045
Adrian, MI μSA97,250Lenawee County, Michigan97,250
Grand Rapids-Wyoming, MI CSA1,502,552Grand Rapids-Wyoming-Kentwood, MI MSA1,162,950Kent County, Michigan661,354
Ottawa County, Michigan303,372
Montcalm County, Michigan68,154
Ionia County, Michigan66,262
Barry County, Michigan63,808
Muskegon-Norton Shores, MI MSA176,564Muskegon County, Michigan176,564
Holland, MI μSA121,939Allegan County, Michigan121,939
Big Rapids, MI μSA41,099Mecosta County, Michigan41,099
Lansing-East Lansing-Owosso, MI CSA541,202Lansing-East Lansing, MI MSA473,177Ingham County, Michigan284,637
Eaton County, Michigan108,820
Clinton County, Michigan79,720
Owosso, MI μSA68,025Shiawassee County, Michigan68,025
Kalamazoo-Battle Creek-Portage, MI CSA456,459Kalamazoo-Portage, MI MSA262,215Kalamazoo County, Michigan262,215
Battle Creek, MI MSA133,366Calhoun County, Michigan133,366
Sturgis, MI μSA60,878St. Joseph County, Michigan60,878
Saginaw-Midland-Bay City, MI CSA374,321Saginaw, MI MSA187,782Saginaw County, Michigan187,782
Bay City, MI MSA102,500Bay County, Michigan102,500
Midland, MI MSA84,039Midland County, Michigan84,039
South Bend-Elkhart-Mishawaka, IN-MI CSA809,876 203,903 (MI)South Bend-Mishawaka, IN-MI MSA324,490 51,642 (MI)St. Joseph County, Indiana272,848
Cass County, Michigan51,642
Elkhart-Goshen, IN MSA206,409Elkhart County, Indiana206,409
Niles, MI MSA152,261Berrien County, Michigan152,261
Warsaw, IN μSA80,364Kosciusko County, Indiana80,364
Plymouth, IN μSA46,352Marshall County, Indiana46,352
noneJackson, MI MSA159,424Jackson County, Michigan159,424
Traverse City, MI MSA156,371Grand Traverse County, Michigan96,421
Leelanau County, Michigan23,019
Kalkaska County, Michigan18,490
Benzie County, Michigan18,441
Mount Pleasant-Alma, MI CSA105,486Mount Pleasant, MI μSA64,118Isabella County, Michigan64,118
Alma, MI μSA41,368Gratiot County, Michigan41,368
noneMarquette, MI μSA66,999Marquette County, Michigan66,999
Cadillac, MI μSA49,433Wexford County, Michigan34,122
Missaukee County, Michigan15,311
Marinette-Iron Mountain, WI-MI CSA95,715 48,927 (MI)Marinette, WI-MI μSA65,051 22,945 (MI)Marinette County, Wisconsin42,106
Menominee County, Michigan22,945
Iron Mountain, MI-WI μSA30,664 25,982 (MI)Dickinson County, Michigan25,982
Florence County, Wisconsin4,682
noneHillsdale, MI μSA45,587Hillsdale County, Michigan45,587
Coldwater, MI μSA45,215Branch County, Michigan45,215
Houghton, MI μSA39,771Houghton County, Michigan37,599
Keweenaw County, Michigan2,172
Escanaba, MI μSA36,790Delta County, Michigan36,790
Sault Ste. Marie, MI μSA36,264Chippewa County, Michigan36,264
Petoskey, MI μSA34,123Emmet County, Michigan34,123
Ludington, MI μSA29,159Mason County, Michigan29,159
Alpena, MI μSA28,904Alpena County, Michigan28,904
noneVan Buren County, Michigan75,798
Tuscola County, Michigan52,826
Newaygo County, Michigan51,108
Sanilac County, Michigan40,368
Clare County, Michigan31,316
Huron County, Michigan30,927
Oceana County, Michigan26,981
Charlevoix County, Michigan26,159
Cheboygan County, Michigan26,048
Gladwin County, Michigan25,853
Otsego County, Michigan25,747
Manistee County, Michigan25,562
Iosco County, Michigan25,373
Antrim County, Michigan24,409
Roscommon County, Michigan23,863
Osceola County, Michigan23,330
Ogemaw County, Michigan20,990
Arenac County, Michigan15,145
Gogebic County, Michigan14,224
Crawford County, Michigan13,538
Presque Isle County, Michigan13,285
Lake County, Michigan12,734
Iron County, Michigan11,740
Mackinac County, Michigan10,851
Alcona County, Michigan10,489
Montmorency County, Michigan9,678
Alger County, Michigan8,757
Oscoda County, Michigan8,545
Baraga County, Michigan8,310
Schoolcraft County, Michigan8,149
Luce County, Michigan6,435
Ontonagon County, Michigan5,906
State of Michigan10,037,261
The 35 core-based statistical areas of the State of Michigan
2023 rankCore-based statistical areaPopulation
2023 estimateChange2020 CensusChange2010 Census
1Detroit-Warren-Dearborn, MI MSA4,342,304−1.13%4,392,041+2.23%4,296,250
2Grand Rapids-Wyoming-Kentwood, MI MSA1,162,950+1.12%1,150,015+9.23%1,052,843
3Lansing-East Lansing, MI MSA473,177−0.01%473,203+1.98%464,036
4Flint, MI MSA401,522−1.15%406,211−4.60%425,790
5Ann Arbor, MI MSA365,536−1.81%372,258+7.97%344,791
6Kalamazoo-Portage, MI MSA262,215+0.21%261,670+4.53%250,331
7Saginaw, MI MSA187,782−1.23%190,124−5.02%200,169
8Muskegon-Norton Shores, MI MSA176,564+0.42%175,824+2.11%172,188
9Jackson, MI MSA159,424−0.59%160,366+0.07%160,248
10Traverse City, MI MSA156,371+1.90%153,448+7.03%143,372
11Monroe, MI MSA155,045+0.15%154,809+1.83%152,021
12Niles, MI MSA152,261−1.33%154,316−1.59%156,813
13Battle Creek, MI MSA133,366−0.70%134,310−1.35%136,146
14Holland, MI μSA121,939+1.19%120,502+8.16%111,408
15Bay City, MI MSA102,500−1.31%103,856−3.63%107,771
16Adrian, MI μSA97,520−1.91%99,423−0.47%99,892
17Midland, MI MSA84,039+0.65%83,494−0.16%83,629
18Owosso, MI μSA68,025−0.10%68,094−3.62%70,648
19Marquette, MI μSA66,999+1.49%66,017−1.58%67,077
20Mount Pleasant, MI μSA64,118−0.43%64,394−8.42%70,311
21Sturgis, MI μSA60,878−0.10%60,939−0.58%61,295
22South Bend-Mishawaka, IN-MI MSA (MI)51,642+0.10%51,589−1.35%52,293
23Cadillac, MI μSA49,433+1.45%48,725+2.40%47,584
24Hillsdale, MI μSA45,587−0.35%45,746−2.02%46,688
25Coldwater, MI μSA45,215+0.79%44,862−0.85%45,248
26Alma, MI μSA41,368−0.94%41,761−1.68%42,476
27Big Rapids, MI μSA41,099+3.49%39,714−7.21%42,798
28Houghton, MI μSA39,771+0.92%39,407+1.61%38,784
29Escanaba, MI μSA36,790−0.31%36,903−0.45%37,069
30Sault Ste. Marie, MI μSA36,264−1.42%36,785−4.50%38,520
31Petoskey, MI μSA34,123+0.03%34,112+4.34%32,694
32Ludington, MI μSA29,159+0.37%29,052+1.21%28,705
33Alpena, MI μSA28,904−0.01%28,907−2.33%29,598
34Iron Mountain, MI-WI μSA (MI)25,982+0.13%25,947−0.84%26,168
35Marinette, WI-MI μSA (MI)22,945−2.37%23,502−2.19%24,029
Iron Mountain, MI-WI μSA30,664+0.52%30,505−0.28%30,591
Marinette, WI-MI μSA65,051−0.49%65,374−0.61%65,778
South Bend-Mishawaka, IN-MI MSA324,4900.00%324,501+1.65%319,224
The eight combined statistical areas of the State of Michigan
2023 rankCombined statistical areaPopulation
2023 estimateChange2020 CensusChange2010 Census
1Detroit-Warren-Ann Arbor, MI CSA5,361,927−1.16%5,424,742+1.99%5,318,744
2Grand Rapids-Wyoming, MI CSA1,502,552+1.11%1,486,055+7.74%1,379,237
3Lansing-East Lansing-Owosso, MI CSA541,202−0.02%541,297+1.24%534,684
4Kalamazoo-Battle Creek-Portage, MI CSA456,459−0.10%456,919+2.04%447,772
5Saginaw-Midland-Bay City, MI CSA374,321−0.84%377,474−3.60%391,569
6South Bend-Elkhart-Mishawaka, IN-MI CSA (MI)203,903−0.97%205,905−1.53%209,106
7Mount Pleasant-Alma, MI CSA105,486−0.63%106,155−5.88%112,787
8Marinette-Iron Mountain, WI-MI CSA (MI)48,927−1.06%49,449−1.49%50,197
Marinette-Iron Mountain, WI-MI CSA95,715−0.17%95,879−0.51%96,369
South Bend-Elkhart-Mishawaka, IN-MI CSA809,876−0.29%812,199+1.78%798,005

See also

Notes

External links

44°20′48″N 85°24′37″W/44.3467°N 85.4102°W/ 44.3467; -85.4102(State of Michigan)