Town · South Dakota
Monroe, South Dakota
Monroe, town, in Turner County, South Dakota. Monroe had 164 residents on July 1, 2025 by the Census Bureau's estimate, up 4.5% since 2020; the 2020 Census counted 159 and the ACS 2020-2024 5-year estimates put it at 233 (±69). GEOID 4643380.
Residents, July 2025 estimate
164
Census Bureau estimate (no margin published)
2020 Census count: 159 · ACS 2020-2024: 233 ±69
Median household income
$51,250
±$25,478 (90% margin)
South Dakota: $75,081
Median home value
$48,900
±$23,272 (90% margin)
South Dakota: $257,400
Median gross rent
$750
±$93 (90% margin)
South Dakota: $946
Where is Monroe and what county is it in?
Monroe is a town in Turner County, South Dakota. It covers 0.4 square miles of land, 420 residents per square mile in 2020.
Monroe is in the Sioux Falls, SD-MN metropolitan statistical area, which takes in 5 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Monroe, and is it growing?
The Census Bureau estimates that 164 people lived in Monroe on July 1, 2025, up 4.5% since 2020, slower than South Dakota (+5.5%). The 2020 Census counted 159 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 233 (±69).
| Measure | Monroe | Turner County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 233 ±69 | 8,882 | no clear change |
| Households | 134 ±49 | 3,568 | no clear change |
| Average household size | 1.74 ±0.30 | 2.42 | no clear change |
| Housing units | 151 ±48 | 3,913 | no clear change |
Monroe's population since 2000
From 163 in 2000 to 164 in 2025: up 0.6%. The 2000, 2010 and 2020 figures are census counts, each for Monroe as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. 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.
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); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Monroe?
The median resident of Monroe is 33.8 years old; 12.9% are under 18 and 14.2% are 65 or older. The largest group is non-Hispanic white residents at 85.0%, then Hispanic or Latino residents (of any race) at 9.4%.
| Measure | Monroe | Turner County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.8 ±11.8 | 41.2 | no clear change |
| Under 18 years | 12.9% ±7.1 pts | 25.3% | – |
| 65 years and over | 14.2% ±7.7 pts | 20.3% | – |
| Male | 54.9% ±12.0 pts | 50.2% | – |
| Hispanic or Latino (any race) | 9.4% ±9.9 pts | 3.5% | – |
| White alone, not Hispanic | 85.0% ±9.6 pts | 93.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±10.2 pts | 0.4% | – |
| Asian alone, not Hispanic | 0.0% ±10.2 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±10.2 pts | 0.5% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±10.2 pts | 0.1% | – |
| Two or more races, not Hispanic | 5.6% ±5.5 pts | 2.0% | – |
| Some other race alone, not Hispanic | 0.0% ±10.2 pts | 0.0% | – |
| Born outside the United States | 3.4% ±5.6 pts | 2.0% | – |
| Speak a language other than English at home (age 5+) | 3.5% ±5.7 pts | 3.8% | – |
| Civilian veterans (age 18+) | 8.9% ±7.5 pts | 8.4% | – |
| With a disability | 12.9% ±8.7 pts | 11.1% | – |
| No health insurance coverage | 16.3% ±9.0 pts | 7.0% | – |
| High school graduate or higher (age 25+) | 90.2% ±6.4 pts | 93.0% | – |
| Bachelor's degree or higher (age 25+) | 6.7% ±9.5 pts | 27.3% | – |
| Graduate or professional degree (age 25+) | 5.5% ±9.3 pts | 7.1% | – |
| Lived in the same house a year earlier | 91.0% ±10.2 pts | 90.9% | – |
| Moved from another state in the past year | 0.9% ±1.1 pts | 1.9% | – |
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 Monroe earn?
Half of Monroe's 134 households earn less than $51,250 a year (±$25,478), against $75,771 in Turner County and $75,081 in South Dakota. In 2015-2019 it was $59,996 in 2024 dollars; the margins of error cannot tell the two periods apart. 24.7% of residents live below the poverty line.
| Measure | Monroe | Turner County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $51,250 ±$25,478 | $75,771 | no clear change |
| Mean household income | $55,172 ±$10,831 | $90,459 | – |
| Per capita income | $29,733 ±$5,452 | $36,868 | no clear change |
| People below the poverty line | 24.7% ±13.2 pts | 9.3% | – |
| Children under 18 below the poverty line | 46.4% ±32.9 pts | 10.1% | – |
| Households receiving SNAP | 16.4% ±12.5 pts | 8.5% | – |
| Households with a computer | 97.8% ±3.0 pts | 92.6% | – |
| Households with a broadband subscription | 85.1% ±10.2 pts | 88.2% | – |
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 Monroe?
Owners occupy 77.6% of Monroe's occupied homes and renters 22.4%. The median owner-occupied home is valued at $48,900 by its owner (±$23,272). The median renter pays $750 a month including utilities.
| Measure | Monroe | Turner County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $48,900 ±$23,272 | $222,900 | – |
| Median gross rent | $750 ±$93 | $742 | no clear change |
| Renters paying 35% or more of income on rent | 40.9% ±39.5 pts | 28.1% | – |
| Median monthly owner costs, with a mortgage | $690 ±$365 | $1,553 | – |
| Owner-occupied homes | 77.6% ±13.5 pts | 79.0% | no clear change |
| Renter-occupied homes | 22.4% ±13.5 pts | 21.0% | – |
| Housing units | 151 ±48 | 3,913 | no clear change |
| Homeowner vacancy rate | 0.0% ±20.8 pts | 0.1% | – |
| Rental vacancy rate | 0.0% ±47.5 pts | 5.9% | – |
| Single-family detached homes | 86.8% ±13.2 pts | 85.4% | – |
| Mobile homes | 6.6% ±10.4 pts | 4.1% | – |
| Built 2020 or later | 0.0% ±15.2 pts | 1.2% | – |
| Built 2010 to 2019 | 2.0% ±3.8 pts | 7.5% | – |
| Built 1939 or earlier | 39.7% ±15.9 pts | 36.5% | – |
| Households with no vehicle | 3.0% ±5.2 pts | 3.9% | – |
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 Monroe building?
Builders took permits for 0 new housing units in Monroe in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 5.7 across South Dakota.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Monroe work and get to work?
62.1% of Monroe's workers drive alone. The average trip to work takes 30.5 minutes.
| Measure | Monroe | Turner County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.7% ±13.5 pts | 69.1% | – |
| Unemployment rate | 5.4% ±5.8 pts | 2.2% | – |
| Drove alone to work | 62.1% ±18.7 pts | 80.1% | – |
| Carpooled | 21.2% ±13.6 pts | 8.1% | – |
| Public transportation | 0.0% ±17.2 pts | 0.4% | – |
| Walked | 0.0% ±17.2 pts | 3.5% | – |
| Worked from home | 16.7% ±16.8 pts | 7.0% | – |
| Mean travel time to work | 30.5 min ±8.0 | 25.3 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 census tracts are in Monroe?
No census tract lies mostly in Monroe; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9651Turner County | 4,577 | $77,500 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Monroe) · Census block assignment files
How does Monroe compare with other places in South Dakota?
By the Census Bureau's July 2025 estimates, Monroe is the 17,069th-most populous of the 19,476 U.S. incorporated places that have one and the 187th-most populous of 310 in South Dakota.
Monroe is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 187th | 310 |
Monroe's figures with every place in South Dakota (CSV)
Every place in South Dakota, sortable · Compare Monroe with other places
Source: PlainCities ranks computed 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 reliable are the figures for Monroe?
28 of the 57 figures for Monroe on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
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 Monroe 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' public schools in Monroe.