Township · Missouri
Polk Township, DeKalb County, Missouri
Polk Township, DeKalb County, township, in DeKalb County, Missouri. Polk Township, DeKalb County had 715 residents on July 1, 2025 by the Census Bureau's estimate, down 2.5% since 2020; the 2020 Census counted 737 and the ACS 2020-2024 5-year estimates put it at 909 (±180). GEOID 2906358772.
Residents, July 2025 estimate
715
Census Bureau estimate (no margin published)
2020 Census count: 737 · ACS 2020-2024: 909 ±180
Median household income
$65,455
±$10,273 (90% margin)
Missouri: $70,702
Median home value
$123,500
±$29,332 (90% margin)
Missouri: $230,300
Median gross rent
$896
±$146 (90% margin)
Missouri: $1,033
Where is Polk Township, DeKalb County and what county is it in?
Polk Township, DeKalb County is a township in DeKalb County, Missouri. It covers 56.5 square miles of land, 13 residents per square mile in 2020.
One place lies inside Polk Township (DeKalb County): Union Star (town, 380 in 2020).
Polk Township, DeKalb County is in the St. Joseph, MO-KS metropolitan statistical area, which takes in 4 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 Polk Township, DeKalb County, and is it growing?
The Census Bureau estimates that 715 people lived in Polk Township, DeKalb County on July 1, 2025, down 2.5% since 2020, while Missouri grew 1.9%. The 2020 Census counted 737 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 909 (±180).
| Measure | Polk Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 909±180 | 10,876 | +239 |
| Households | 388±95 | 3,732 | +125 |
| Average household size | 2.34±0.36 | 2.40 | no clear change |
| Housing units | 415±95 | 4,270 | no clear change |
Polk Township, DeKalb County's population since 2000
From 810 in 2000 to 715 in 2025: down 11.7%. The 2000, 2010 and 2020 figures are census counts, each for Polk Township, DeKalb County 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 Polk Township, DeKalb County?
The median resident of Polk Township, DeKalb County is 38.1 years old; 23.0% are under 18 and 24.4% are 65 or older. The largest group is non-Hispanic white residents at 94.9%, then non-Hispanic Black residents at 3.0%.
| Measure | Polk Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.1±9.8 | 42.2 | no clear change |
| Under 18 years | 23.0%±6.5 pts | 19.8% | – |
| 65 years and over | 24.4%±8.1 pts | 19.5% | – |
| Male | 50.1%±4.5 pts | 57.0% | – |
| Hispanic or Latino (any race) | 0.6%±0.8 pts | 2.4% | – |
| White alone, not Hispanic | 94.9%±4.3 pts | 87.0% | no clear change |
| Black or African American alone, not Hispanic | 3.0%±3.0 pts | 6.5% | – |
| Asian alone, not Hispanic | 0.4%±0.8 pts | 0.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±3.8 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±3.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.1%±1.4 pts | 3.1% | – |
| Some other race alone, not Hispanic | 0.0%±3.8 pts | 0.2% | – |
| Born outside the United States | 0.4%±0.8 pts | 1.8% | – |
| Speak a language other than English at home (age 5+) | 1.0%±1.1 pts | 1.9% | – |
| Civilian veterans (age 18+) | 8.0%±4.1 pts | 7.9% | – |
| With a disability | 13.9%±5.1 pts | 15.9% | – |
| No health insurance coverage | 7.8%±4.7 pts | 6.7% | no clear change |
| High school graduate or higher (age 25+) | 96.4%±2.5 pts | 89.4% | – |
| Bachelor's degree or higher (age 25+) | 20.6%±6.5 pts | 16.4% | no clear change |
| Graduate or professional degree (age 25+) | 3.4%±2.7 pts | 4.9% | – |
| Lived in the same house a year earlier | 84.7%±9.7 pts | 87.4% | – |
| Moved from another state in the past year | 8.5%±6.5 pts | 2.1% | – |
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 Polk Township, DeKalb County earn?
Half of Polk Township, DeKalb County's 388 households earn less than $65,455 a year (±$10,273), against $69,826 in DeKalb County and $70,702 in Missouri. In 2015-2019 it was $69,842 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Polk Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $65,455±$10,273 | $69,826 | no clear change |
| Mean household income | $76,418±$11,227 | $84,578 | – |
| Per capita income | $32,090±$3,367 | $28,990 | no clear change |
| People below the poverty line | 3.6%±2.9 pts | 8.7% | – |
| Children under 18 below the poverty line | 0.0%±15.4 pts | 7.8% | – |
| Households receiving SNAP | 1.0%±1.2 pts | 7.8% | – |
| Households with a computer | 86.3%±9.2 pts | 90.1% | – |
| Households with a broadband subscription | 75.8%±9.9 pts | 82.7% | – |
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 Polk Township, DeKalb County?
Owners occupy 76.5% of Polk Township, DeKalb County's occupied homes and renters 23.5%. The median owner-occupied home is valued at $123,500 by its owner (±$29,332). The median renter pays $896 a month including utilities.
| Measure | Polk Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $123,500±$29,332 | $169,200 | no clear change |
| Median gross rent | $896±$146 | $817 | +$415 |
| Renters paying 35% or more of income on rent | 11.0%±16.3 pts | 18.0% | – |
| Median monthly owner costs, with a mortgage | $1,447±$367 | $1,389 | – |
| Owner-occupied homes | 76.5%±12.5 pts | 71.1% | no clear change |
| Renter-occupied homes | 23.5%±12.5 pts | 28.9% | – |
| Housing units | 415±95 | 4,270 | no clear change |
| Homeowner vacancy rate | 0.0%±10.8 pts | 0.5% | – |
| Rental vacancy rate | 0.0%±30.9 pts | 8.7% | – |
| Single-family detached homes | 90.8%±5.6 pts | 72.2% | – |
| Mobile homes | 3.9%±2.7 pts | 8.8% | – |
| Built 2020 or later | 0.0%±8.1 pts | 0.6% | – |
| Built 2010 to 2019 | 0.2%±0.7 pts | 5.9% | – |
| Built 1939 or earlier | 29.9%±10.5 pts | 17.3% | – |
| Households with no vehicle | 3.6%±2.7 pts | 4.1% | – |
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 do people in Polk Township, DeKalb County work and get to work?
78.1% of Polk Township, DeKalb County's workers drive alone and 17.8% work from home. The average trip to work takes 66.7 minutes.
| Measure | Polk Township, DeKalb County | DeKalb County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.2%±10.0 pts | 47.6% | – |
| Unemployment rate | 3.0%±2.7 pts | 2.3% | – |
| Drove alone to work | 78.1%±10.2 pts | 76.6% | – |
| Carpooled | 2.6%±2.5 pts | 10.3% | – |
| Public transportation | 0.0%±8.0 pts | 0.2% | – |
| Walked | 0.2%±0.6 pts | 1.7% | – |
| Worked from home | 17.8%±9.7 pts | 9.9% | – |
| Mean travel time to work | 66.7 min±27.5 | 31.1 min | +31.3 min |
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 Polk Township, DeKalb County?
No census tract lies mostly in Polk Township, DeKalb County; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 802DeKalb County | 4,089 | $74,659 |
| Tract 801.01DeKalb County | 2,106 | $59,432 |
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 Polk Township, DeKalb County) · Census block assignment files
How does Polk Township, DeKalb County compare with other places in Missouri?
By the Census Bureau's July 2025 estimates, Polk Township, DeKalb County is the 8,930th-most populous of the 16,079 U.S. towns and townships that have one and the 73rd-most populous of 280 in Missouri.
Polk Township, DeKalb County 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 | 73rd | 280 |
Polk Township, DeKalb County's figures with every place in Missouri (CSV)
Every place in Missouri, sortable · Compare Polk Township, DeKalb County 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 Polk Township, DeKalb County?
25 of the 57 figures for Polk Township, DeKalb County 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 Polk Township, DeKalb 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.