Village · Illinois
Martinton, Illinois
Martinton, village, in Iroquois County, Illinois. Martinton had 317 residents on July 1, 2025 by the Census Bureau's estimate, down 4.2% since 2020; the 2020 Census counted 334 and the ACS 2020-2024 5-year estimates put it at 363 (±101). GEOID 1747280.
Residents, July 2025 estimate
317
Census Bureau estimate (no margin published)
2020 Census count: 334 · ACS 2020-2024: 363 ±101
Median household income
$79,000
±$24,198 (90% margin)
Illinois: $83,390
Median home value
$105,000
±$24,163 (90% margin)
Illinois: $263,300
Median gross rent
not published
Illinois: $1,274
Where is Martinton and what county is it in?
Martinton is a village in Iroquois County, Illinois. It covers 0.3 square miles of land, 1,219 residents per square mile in 2020.
Martinton lies entirely within Martinton 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 Martinton, and is it growing?
The Census Bureau estimates that 317 people lived in Martinton on July 1, 2025, down 4.2% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 334 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 363 (±101).
| Measure | Martinton | Iroquois County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 363 ±101 | 26,449 | no clear change |
| Households | 146 ±38 | 11,443 | no clear change |
| Average household size | 2.49 ±0.36 | 2.27 | no clear change |
| Housing units | 178 ±45 | 12,789 | no clear change |
Martinton's population since 2000
From 375 in 2000 to 317 in 2025: down 15.5%. The 2000, 2010 and 2020 figures are census counts, each for Martinton 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 Martinton?
The median resident of Martinton is 48.2 years old; 12.7% are under 18 and 18.2% are 65 or older. The largest group is non-Hispanic white residents at 88.2%, then Hispanic or Latino residents (of any race) at 8.3%.
| Measure | Martinton | Iroquois County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 48.2 ±5.0 | 44.4 | no clear change |
| Under 18 years | 12.7% ±5.4 pts | 21.6% | – |
| 65 years and over | 18.2% ±9.2 pts | 22.6% | – |
| Male | 55.9% ±5.6 pts | 49.6% | – |
| Hispanic or Latino (any race) | 8.3% ±5.2 pts | 8.3% | – |
| White alone, not Hispanic | 88.2% ±7.6 pts | 87.2% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±9.8 pts | 0.8% | – |
| Asian alone, not Hispanic | 2.8% ±4.9 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±9.8 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±9.8 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.8% ±1.1 pts | 2.9% | – |
| Some other race alone, not Hispanic | 0.0% ±9.8 pts | 0.4% | – |
| Born outside the United States | 3.0% ±3.3 pts | 3.5% | – |
| Speak a language other than English at home (age 5+) | 2.6% ±3.3 pts | 6.0% | – |
| Civilian veterans (age 18+) | 7.9% ±5.2 pts | 6.7% | – |
| With a disability | 11.0% ±6.4 pts | 16.2% | – |
| No health insurance coverage | 7.7% ±3.9 pts | 6.0% | – |
| High school graduate or higher (age 25+) | 95.5% ±3.1 pts | 89.1% | – |
| Bachelor's degree or higher (age 25+) | 9.4% ±5.6 pts | 18.2% | no clear change |
| Graduate or professional degree (age 25+) | 2.6% ±2.2 pts | 5.5% | – |
| Lived in the same house a year earlier | 87.9% ±8.0 pts | 91.7% | – |
| Moved from another state in the past year | 0.0% ±9.8 pts | 0.8% | – |
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 Martinton earn?
Half of Martinton's 146 households earn less than $79,000 a year (±$24,198), against $66,255 in Iroquois County and $83,390 in Illinois. In 2015-2019 it was $76,918 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Martinton | Iroquois County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $79,000 ±$24,198 | $66,255 | no clear change |
| Mean household income | $90,929 ±$15,092 | $84,074 | – |
| Per capita income | $36,938 ±$4,916 | $36,404 | no clear change |
| People below the poverty line | 9.1% ±8.1 pts | 12.5% | – |
| Children under 18 below the poverty line | 15.6% ±15.6 pts | 14.9% | – |
| Households receiving SNAP | 5.5% ±4.8 pts | 14.2% | – |
| Households with a computer | 94.5% ±4.7 pts | 93.3% | – |
| Households with a broadband subscription | 95.9% ±4.4 pts | 86.5% | – |
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 Martinton?
Owners occupy 93.2% of Martinton's occupied homes and renters 6.8%. The median owner-occupied home is valued at $105,000 by its owner (±$24,163).
| Measure | Martinton | Iroquois County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $105,000 ±$24,163 | $137,800 | no clear change |
| Renters paying 35% or more of income on rent | 0.0% ±100.0 pts | 29.0% | – |
| Median monthly owner costs, with a mortgage | $1,154 ±$123 | $1,290 | – |
| Owner-occupied homes | 93.2% ±5.5 pts | 80.0% | +26.3 pts |
| Renter-occupied homes | 6.8% ±5.5 pts | 20.0% | – |
| Housing units | 178 ±45 | 12,789 | no clear change |
| Homeowner vacancy rate | 3.5% ±5.5 pts | 1.6% | – |
| Rental vacancy rate | 28.6% ±38.1 pts | 4.7% | – |
| Single-family detached homes | 97.8% ±2.7 pts | 85.2% | – |
| Mobile homes | 2.2% ±2.7 pts | 3.9% | – |
| Built 2020 or later | 0.0% ±18.9 pts | 0.2% | – |
| Built 2010 to 2019 | 1.1% ±1.8 pts | 2.2% | – |
| Built 1939 or earlier | 56.2% ±12.3 pts | 30.3% | – |
| Households with no vehicle | 0.0% ±22.4 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 Martinton building?
Builders took permits for 0 new housing units in Martinton in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 1.5 across Illinois.
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 Martinton work and get to work?
80.5% of Martinton's workers drive alone. The average trip to work takes 37.1 minutes. The unemployment rate in 2020-2024 averaged 6.3%.
| Measure | Martinton | Iroquois County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 67.2% ±9.4 pts | 60.1% | – |
| Unemployment rate | 6.3% ±3.6 pts | 4.5% | – |
| Drove alone to work | 80.5% ±8.7 pts | 81.1% | – |
| Carpooled | 15.1% ±8.1 pts | 7.2% | – |
| Public transportation | 0.0% ±16.6 pts | 0.2% | – |
| Walked | 0.0% ±16.6 pts | 2.0% | – |
| Worked from home | 4.4% ±3.0 pts | 7.6% | – |
| Mean travel time to work | 37.1 min ±9.9 | 25.0 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 Martinton?
No census tract lies mostly in Martinton; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9501Iroquois County | 2,444 | $70,099 |
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 Martinton) · Census block assignment files
How does Martinton compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Martinton is the 14,952nd-most populous of the 19,476 U.S. incorporated places that have one and the 987th-most populous of 1,294 in Illinois.
Martinton 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 | 987th | 1,294 |
Martinton's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Martinton 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 Martinton?
25 of the 56 figures for Martinton 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 Martinton 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 Martinton.