County · Minnesota

Martin County, Minnesota

Martin County, Minnesota. Martin County had 19,440 residents in 2025 by the Census Bureau's estimate, down 3.0% since 2020, while Minnesota grew 2.2%. It holds 30 places (10 cities, villages and boroughs and 20 towns and townships) and 7 census tracts. GEOID 27091.

Martin County is the county of the Fairmont, MN micropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

19,440

Census Bureau estimate (no margin published)
2020 Census count: 20,025 · ACS 2020-2024: 19,780

Median household income

$59,507

±$3,542 (90% margin)
Minnesota: $89,062

Median home value

$163,500

±$7,281 (90% margin)
Minnesota: $329,300

Median gross rent

$761

±$61 (90% margin)
Minnesota: $1,280

How many people live in Martin County, and is it growing?

The 2020 Census counted 20,025 residents in Martin County. The Census Bureau estimates 19,440 for July 1, 2025, down 3.0% since 2020, while Minnesota grew 2.2%. The 2020-2024 American Community Survey puts the population at 19,780 over 712 square miles of land.

July 2020→2021 −57 (19,941)
2021→2022 −245 (19,696)
2022→2023 +31 (19,727)
2023→2024 −163 (19,564)
2024→2025 −124 (19,440)

Martin County in Minnesota. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Martin County	Minnesota	Change since 2015-2019
Total population	19,780	5,739,445	−72
Households	8,839±250	2,307,955	no clear change
Average household size	2.19±0.06	2.43	no clear change
Housing units	9,729±69	2,545,030	−252

Martin County's population since 2000

From 21,802 in 2000 to 19,440 in 2025: down 10.8%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.

2000 Census 21,802
2005 (estimate) 21,063
2010 Census 20,840
2015 (estimate) 20,041
2020 Census 20,025
2025 (estimate) 19,440

Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov

What cities and towns are in Martin County?

Martin County holds 30 places: 10 cities, villages and boroughs (incorporated places) and 20 towns and townships (county subdivisions with their own government). The largest is Fairmont with 10,099 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Martin County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Fairmont	city	10,487	10,296±53	$53,084	$169,900	15.3%	100%
Truman	city	1,092	1,212±170	$61,188	$106,400	10.9%	100%
Sherburn	city	1,058	1,015±182	$59,777	$106,900	22.7%	100%
Welcome	city	710	978±218	$49,167	$101,600	18.3%	100%
Trimont	city	705	546±80	$49,196	$98,800	15.2%	100%
Silver Lake Township	township	457	334±42	$115,568	$321,400	1.5%	100%
Rutland Township	township	366	292±62	$97,750	$265,000	9.6%	100%
Manyaska TownshipGEOID 2709140058	township	308	334±75	$81,250	$256,300	2.2%	100%
Fairmont Township	township	308	311±60	$99,375	$257,800	11.9%	100%
Ceylon	city	303	259±56	$40,208	$43,500	15.2%	100%
Granada	city	291	243±54	$70,000	$93,800	19.3%	100%
East Chain Township	township	276	289±58	$90,313	$208,300	3.8%	100%
Fraser Township	township	271	264±44	$86,250	$256,300	11.5%	100%
Fox Lake TownshipGEOID 2709122256	township	259	193±47	$71,250	$438,100	2.1%	100%
Westford Township	township	255	320±106	$81,250	$233,800	4.7%	100%
Rolling Green TownshipGEOID 2709155258	township	250	175±41	$88,750	$222,900	3.4%	100%
Tenhassen Township	township	233	276±99	$68,750	$250,000	15.9%	100%
Jay TownshipGEOID 2709131778	township	230	275±73	$125,000	$283,300	3.3%	100%
Pleasant Prairie TownshipGEOID 2709151622	township	228	225±59	$105,000	$184,100	2.2%	100%
Northrop	city	223	240±65	$67,083	$136,300	9.6%	100%
Center Creek Township	township	217	180±50	$80,625	$182,500	8.3%	100%
Galena TownshipGEOID 2709123030	township	211	253±81	$84,583	$275,000	2.4%	100%
Nashville TownshipGEOID 2709144962	township	205	157±46	$76,389	$205,800	10.2%	100%
Waverly TownshipGEOID 2709168746	township	201	141±34	$91,250	$266,700	3.5%	100%
Cedar Township, Martin CountyGEOID 2709110378	township	196	216±68	$118,438	$152,700	0.5%	100%
Lake Belt TownshipGEOID 2709134082	township	190	190±49	$71,250	$167,700	14.7%	100%
Elm Creek TownshipGEOID 2709118854	township	160	151±37	$121,250	$296,900	4.0%	100%
Lake Fremont Township	township	155	174±39	$71,250	$245,000	9.2%	100%
DunnellGEOID 2717180	city	133	177±82	$31,786	$51,300	1.1%	100%
OrmsbyGEOID 2748562	city	118	136±54	$80,625	$75,000	10.3%	40%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov

Who lives in Martin County?

The median resident of Martin County is 43.9 years old; 22.8% are under 18 and 24.6% are 65 or older. The largest group is non-Hispanic white residents at 88.2%, then Hispanic or Latino residents (of any race) at 7.2%. 2.5% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Martin County	Minnesota	Change since 2015-2019
Median age	43.9±0.3	38.8	−1.4
Under 18 years	22.8%±0.1 pts	22.9%	–
65 years and over	24.6%±0.4 pts	17.3%	–
Hispanic or Latino (any race)	7.2%	6.4%	+2.7 pts
White alone, not Hispanic	88.2%±0.9 pts	75.9%	−4.7 pts
Black or African American alone, not Hispanic	0.9%±0.2 pts	6.9%	+0.4 pts
Asian alone, not Hispanic	0.5%±0.1 pts	5.1%	–
American Indian and Alaska Native alone, not Hispanic	0.1%±0.1 pts	0.7%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.0%	–
Two or more races, not Hispanic	2.1%±0.4 pts	4.5%	–
Some other race alone, not Hispanic	1.1%±0.9 pts	0.5%	–
Born outside the United States	2.5%±0.5 pts	8.7%	no clear change
Speak a language other than English at home (age 5+)	5.7%±1.0 pts	12.4%	–
Civilian veterans (age 18+)	8.9%±1.1 pts	5.9%	–
With a disability	16.8%±1.5 pts	11.6%	–
No health insurance coverage	4.1%±0.9 pts	4.7%	no clear change
High school graduate or higher (age 25+)	95.2%±1.2 pts	93.9%	–
Bachelor's degree or higher (age 25+)	23.8%±2.3 pts	39.4%	+3.3 pts
Graduate or professional degree (age 25+)	7.4%±1.5 pts	13.8%	–
Moved from another state in the past year	1.0%±0.4 pts	1.8%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov

What do households in Martin County earn?

Half of Martin County's 8,839 households earn less than $59,507 a year (±$3,542), against $89,062 in Minnesota. In 2015-2019 the median was $64,978 in 2024 dollars, so it fell by $5,471 after inflation. 13.1% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Martin County	Minnesota	Change since 2015-2019
Median household income	$59,507±$3,542	$89,062	−$5,471
Mean household income	$82,458±$4,587	$118,304	–
Per capita income	$37,332±$2,107	$48,237	no clear change
People below the poverty line	13.1%±2.7 pts	9.3%	no clear change
Children under 18 below the poverty line	13.9%±6.4 pts	10.3%	no clear change
Households receiving SNAP	12.3%±2.0 pts	7.9%	–
Households with a broadband subscription	86.3%±2.0 pts	91.6%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What does housing cost in Martin County?

Owners occupy 68.9% of Martin County's occupied homes and renters 31.1%. The median owner-occupied home is valued at $163,500 by its owner (±$7,281). The median renter pays $761 a month including utilities, and 38.3% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Martin County	Minnesota	Change since 2015-2019
Median home value (owner-occupied)	$163,500±$7,281	$329,300	+$17,909
Median gross rent	$761±$61	$1,280	no clear change
Renters paying 35% or more of income on rent	38.3%±7.9 pts	38.4%	no clear change
Median monthly owner costs, with a mortgage	$1,270±$89	$1,947	–
Owner-occupied homes	68.9%±3.3 pts	72.2%	−4.9 pts
Housing units	9,729±69	2,545,030	−252
Homeowner vacancy rate	1.5%±1.5 pts	0.6%	–
Rental vacancy rate	4.9%±4.5 pts	5.3%	–
Single-family detached homes	75.8%±2.7 pts	66.0%	–
Mobile homes	2.3%±1.0 pts	2.9%	–
Built 2020 or later	0.3%±0.3 pts	1.9%	–
Built 1939 or earlier	29.0%±2.9 pts	15.6%	–

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov

How many new homes is Martin County building?

Builders took permits for 13 new housing units across Martin County in 2025 (13 single-family), 0.7 per 1,000 residents.

2019 14 units
2020 19 units
2021 18 units
2022 20 units
2023 9 units
2024 27 units
2025 13 units

Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey

How do people in Martin County get to work?

80.0% of Martin County's workers drive alone and 7.9% work from home. The average trip to work takes 16.9 minutes. The unemployment rate in 2020-2024 averaged 4.2%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Martin County	Minnesota	Change since 2015-2019
In the labor force (age 16+)	62.9%±1.5 pts	68.1%	–
Unemployment rate	4.2%±1.3 pts	4.1%	no clear change
Drove alone to work	80.0%±2.2 pts	68.9%	–
Carpooled	6.1%±1.3 pts	7.5%	–
Public transportation	0.2%±0.3 pts	1.8%	–
Walked	4.5%±1.4 pts	2.5%	–
Worked from home	7.9%±1.7 pts	17.6%	no clear change
Mean travel time to work	16.9 min±0.9	22.7 min	no clear change

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov

What are Martin County's census tracts?

Martin County is divided into 7 census tracts. Among those with a reliable estimate, median household income runs from $38,510 (Tract 7906) to $83,333 (Tract 7905.01).

Census tracts of Martin County, ACS 2020-2024 5-year estimates; sort by any column

Tract 790127091790100	Trimont (13%)	2,930	2,927±187	$67,639	$129,700	$957	8.7%
Tract 790227091790200	Welcome (12%)	2,475	2,502±217	$71,016	$151,100	$827	13.1%
Tract 790327091790300	Sherburn (22%)	2,318	2,282±188	$74,600	$182,900	$760	12.9%
Tract 790427091790400	Ceylon (13%)	1,722	1,698±151	$67,083	$167,100	$967	8.2%
Tract 7905.0127091790501	Fairmont (84%)	1,799	1,932±292	$83,333	$288,100	$1,076	7.1%
Tract 7905.0227091790502	Fairmont	4,423	4,138±309	$61,686	$176,800	$731	10.0%
Tract 790627091790600	Fairmont (87%)	4,358	4,301±436	$38,510	$113,400	$722	23.8%

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov

How does Martin County compare with Minnesota's other counties?

Martin County's rank among Minnesota's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	49th of 87
Growth 2020-2025	82nd of 87
Residents per square mile	43rd of 87
Median household income	86th of 87
Median home value	71st of 87
Median gross rent	71st of 87
Poverty rate	13th of 87
Bachelor's degree or higher	53rd of 87
Median age	26th of 87

Every county in Minnesota

Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections

Not on this page: crime, weather and schools for Martin County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.