City · Kansas
Frankfort, Kansas
Frankfort, city, in Marshall County, Kansas. Frankfort had 718 residents on July 1, 2025 by the Census Bureau's estimate, down 1.1% since 2020; the 2020 Census counted 730 and the ACS 2020-2024 5-year estimates put it at 726 (±140). GEOID 2024275.
Residents, July 2025 estimate
718
Census Bureau estimate (no margin published)
2020 Census count: 730 · ACS 2020-2024: 726 ±140
Median household income
$70,000
±$14,099 (90% margin)
Kansas: $74,275
Median home value
$89,100
±$16,181 (90% margin)
Kansas: $217,200
Median gross rent
$771
±$139 (90% margin)
Kansas: $1,060
Where is Frankfort and what county is it in?
Frankfort is a city in Marshall County, Kansas. It covers 1.0 square miles of land, 725 residents per square mile in 2020.
Frankfort lies entirely within Vermillion Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Frankfort, and is it growing?
The Census Bureau estimates that 718 people lived in Frankfort on July 1, 2025, down 1.1% since 2020, while Kansas grew 1.3%. The 2020 Census counted 730 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 726 (±140).
| Measure | Frankfort | Marshall County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 726 ±140 | 9,993 | no clear change |
| Households | 318 ±60 | 4,176 | no clear change |
| Average household size | 2.19 ±0.23 | 2.34 | no clear change |
| Housing units | 374 ±70 | 4,751 | no clear change |
Frankfort's population since 2000
From 855 in 2000 to 718 in 2025: down 16.0%. The 2000, 2010 and 2020 figures are census counts, each for Frankfort 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 Frankfort?
The median resident of Frankfort is 45.5 years old; 21.8% are under 18 and 23.6% are 65 or older. The largest group is non-Hispanic white residents at 96.8%, then non-Hispanic Black residents at 2.2%.
| Measure | Frankfort | Marshall County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.5 ±3.3 | 43.2 | no clear change |
| Under 18 years | 21.8% ±5.3 pts | 24.2% | – |
| 65 years and over | 23.6% ±5.8 pts | 23.1% | – |
| Male | 49.7% ±5.2 pts | 51.3% | – |
| Hispanic or Latino (any race) | 0.3% ±0.8 pts | 2.8% | – |
| White alone, not Hispanic | 96.8% ±3.2 pts | 93.3% | no clear change |
| Black or African American alone, not Hispanic | 2.2% ±2.7 pts | 0.7% | – |
| Asian alone, not Hispanic | 0.3% ±0.5 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.3% ±0.7 pts | 2.4% | – |
| Some other race alone, not Hispanic | 0.0% ±4.0 pts | 0.2% | – |
| Born outside the United States | 1.5% ±1.3 pts | 0.8% | – |
| Speak a language other than English at home (age 5+) | 1.2% ±1.6 pts | 3.1% | – |
| Civilian veterans (age 18+) | 9.2% ±4.9 pts | 8.8% | – |
| With a disability | 18.6% ±5.6 pts | 15.2% | – |
| No health insurance coverage | 4.7% ±2.7 pts | 5.1% | no clear change |
| High school graduate or higher (age 25+) | 94.0% ±2.8 pts | 92.7% | – |
| Bachelor's degree or higher (age 25+) | 23.1% ±6.1 pts | 19.1% | no clear change |
| Graduate or professional degree (age 25+) | 7.1% ±3.1 pts | 6.5% | – |
| Lived in the same house a year earlier | 83.4% ±10.9 pts | 92.6% | – |
| Moved from another state in the past year | 10.1% ±11.2 pts | 2.2% | – |
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 Frankfort earn?
Half of Frankfort's 318 households earn less than $70,000 a year (±$14,099), against $68,419 in Marshall County and $74,275 in Kansas. In 2015-2019 it was $67,996 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.2% of residents live below the poverty line.
| Measure | Frankfort | Marshall County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $70,000 ±$14,099 | $68,419 | no clear change |
| Mean household income | $81,801 ±$10,016 | $82,364 | – |
| Per capita income | $38,331 ±$4,063 | $35,770 | no clear change |
| People below the poverty line | 3.2% ±2.0 pts | 11.3% | −5.8 pts |
| Children under 18 below the poverty line | 2.7% ±3.5 pts | 12.0% | – |
| Households receiving SNAP | 0.9% ±1.3 pts | 3.8% | – |
| Households with a computer | 98.1% ±2.1 pts | 90.1% | – |
| Households with a broadband subscription | 93.4% ±4.6 pts | 84.5% | – |
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 Frankfort?
Owners occupy 78.3% of Frankfort's occupied homes and renters 21.7%. The median owner-occupied home is valued at $89,100 by its owner (±$16,181). The median renter pays $771 a month including utilities.
| Measure | Frankfort | Marshall County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $89,100 ±$16,181 | $127,700 | no clear change |
| Median gross rent | $771 ±$139 | $690 | no clear change |
| Renters paying 35% or more of income on rent | 34.8% ±26.1 pts | 30.5% | – |
| Median monthly owner costs, with a mortgage | $1,063 ±$124 | $1,285 | – |
| Owner-occupied homes | 78.3% ±9.4 pts | 80.0% | no clear change |
| Renter-occupied homes | 21.7% ±9.4 pts | 20.0% | – |
| Housing units | 374 ±70 | 4,751 | no clear change |
| Homeowner vacancy rate | 3.9% ±5.1 pts | 1.4% | – |
| Rental vacancy rate | 9.2% ±12.6 pts | 23.2% | – |
| Single-family detached homes | 86.4% ±8.2 pts | 87.3% | – |
| Mobile homes | 7.8% ±6.7 pts | 5.3% | – |
| Built 2020 or later | 0.3% ±1.0 pts | 0.2% | – |
| Built 2010 to 2019 | 1.1% ±1.3 pts | 5.4% | – |
| Built 1939 or earlier | 39.3% ±7.1 pts | 34.7% | – |
| Households with no vehicle | 5.0% ±4.2 pts | 4.5% | – |
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 Frankfort building?
Builders took permits for 0 new housing units in Frankfort in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 3.5 across Kansas.
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 Frankfort work and get to work?
77.9% of Frankfort's workers drive alone. The average trip to work takes 19.5 minutes.
| Measure | Frankfort | Marshall County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.0% ±6.3 pts | 63.0% | – |
| Unemployment rate | 1.5% ±1.7 pts | 2.0% | – |
| Drove alone to work | 77.9% ±7.7 pts | 73.5% | – |
| Carpooled | 10.0% ±4.9 pts | 14.2% | – |
| Public transportation | 0.0% ±7.2 pts | 0.5% | – |
| Walked | 10.0% ±5.2 pts | 4.9% | – |
| Worked from home | 2.0% ±1.5 pts | 5.8% | – |
| Mean travel time to work | 19.5 min ±2.6 | 16.4 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 Frankfort?
No census tract lies mostly in Frankfort; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 407.01Marshall County | 1,849 | $81,167 |
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 Frankfort) · Census block assignment files
How does Frankfort compare with other places in Kansas?
By the Census Bureau's July 2025 estimates, Frankfort is the 11,711th-most populous of the 19,476 U.S. incorporated places that have one and the 231st-most populous of 625 in Kansas.
Frankfort 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 | 231st | 625 |
Frankfort's figures with every place in Kansas (CSV)
Every place in Kansas, sortable · Compare Frankfort 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 Frankfort?
22 of the 57 figures for Frankfort 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 Frankfort 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 Frankfort.