Township · Illinois
Monticello Township, Illinois
Monticello Township, township, in Piatt County, Illinois. Monticello Township had 6,229 residents on July 1, 2025 by the Census Bureau's estimate, up 2.1% since 2020; the 2020 Census counted 6,132 and the ACS 2020-2024 5-year estimates put it at 6,154 (±25). GEOID 1714750257.
Residents, July 2025 estimate
6,229
Census Bureau estimate (no margin published)
2020 Census count: 6,132 · ACS 2020-2024: 6,154 ±25
Median household income
$99,256
±$9,531 (90% margin)
Illinois: $83,390
Median home value
$209,500
±$21,083 (90% margin)
Illinois: $263,300
Median gross rent
$1,382
±$331 (90% margin)
Illinois: $1,274
Where is Monticello Township and what county is it in?
Monticello Township is a township in Piatt County, Illinois. It covers 48.0 square miles of land, 128 residents per square mile in 2020.
One place lies inside Monticello Township: Monticello (city, 5,941 in 2020).
Monticello Township is in the Champaign-Urbana, IL metropolitan statistical area, which takes in 3 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 Monticello Township, and is it growing?
The Census Bureau estimates that 6,229 people lived in Monticello Township on July 1, 2025, up 2.1% since 2020, while Illinois shrank 0.8%. The 2020 Census counted 6,132 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 6,154 (±25).
| Measure | Monticello Township | Piatt County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,154±25 | 16,695 | +270 |
| Households | 2,694±149 | 6,924 | no clear change |
| Average household size | 2.25±0.12 | 2.39 | no clear change |
| Housing units | 2,801±152 | 7,412 | no clear change |
Monticello Township's population since 2000
From 5,604 in 2000 to 6,229 in 2025: up 11.2%. The 2000, 2010 and 2020 figures are census counts, each for Monticello Township 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 Monticello Township?
The median resident of Monticello Township is 46.7 years old; 16.2% are under 18 and 23.2% are 65 or older. The largest group is non-Hispanic white residents at 96.8%, then Hispanic or Latino residents (of any race) at 1.9%. 2.9% of residents were born outside the United States.
| Measure | Monticello Township | Piatt County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.7±7.2 | 42.8 | no clear change |
| Under 18 years | 16.2%±3.3 pts | 21.6% | – |
| 65 years and over | 23.2%±3.6 pts | 21.1% | – |
| Male | 48.1%±2.4 pts | 49.9% | – |
| Hispanic or Latino (any race) | 1.9%±1.0 pts | 1.6% | no clear change |
| White alone, not Hispanic | 96.8%±1.6 pts | 94.8% | no clear change |
| Black or African American alone, not Hispanic | 0.4%±0.4 pts | 1.2% | – |
| Asian alone, not Hispanic | 0.9%±1.1 pts | 0.6% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.0%±0.6 pts | 1.6% | – |
| Some other race alone, not Hispanic | 0.0%±0.6 pts | 0.2% | – |
| Born outside the United States | 2.9%±1.5 pts | 1.7% | no clear change |
| Speak a language other than English at home (age 5+) | 2.7%±1.9 pts | 2.4% | – |
| Civilian veterans (age 18+) | 5.4%±2.5 pts | 6.7% | – |
| With a disability | 11.7%±3.2 pts | 13.0% | – |
| No health insurance coverage | 1.4%±1.2 pts | 3.3% | – |
| High school graduate or higher (age 25+) | 95.4%±2.6 pts | 96.2% | – |
| Bachelor's degree or higher (age 25+) | 38.0%±5.7 pts | 32.9% | no clear change |
| Graduate or professional degree (age 25+) | 13.6%±4.2 pts | 11.8% | – |
| Lived in the same house a year earlier | 91.8%±3.7 pts | 90.5% | – |
| Moved from another state in the past year | 0.6%±0.8 pts | 0.5% | – |
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 Monticello Township earn?
Half of Monticello Township's 2,694 households earn less than $99,256 a year (±$9,531), against $94,811 in Piatt County and $83,390 in Illinois. In 2015-2019 it was $91,126 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Monticello Township | Piatt County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $99,256±$9,531 | $94,811 | no clear change |
| Mean household income | $112,109±$12,620 | $113,102 | – |
| Per capita income | $49,908±$5,194 | $46,739 | +$7,362 |
| People below the poverty line | 5.2%±3.5 pts | 6.1% | – |
| Children under 18 below the poverty line | 8.0%±8.9 pts | 6.7% | – |
| Households receiving SNAP | 3.0%±3.0 pts | 6.3% | – |
| Households with a computer | 96.7%±2.8 pts | 95.3% | – |
| Households with a broadband subscription | 92.2%±3.8 pts | 91.3% | – |
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 Monticello Township?
Owners occupy 84.4% of Monticello Township's occupied homes and renters 15.6%. The median owner-occupied home is valued at $209,500 by its owner (±$21,083). The median renter pays $1,382 a month including utilities.
| Measure | Monticello Township | Piatt County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $209,500±$21,083 | $180,600 | no clear change |
| Median gross rent | $1,382±$331 | $1,046 | no clear change |
| Renters paying 35% or more of income on rent | 21.9%±16.9 pts | 25.5% | – |
| Median monthly owner costs, with a mortgage | $1,648±$160 | $1,527 | – |
| Owner-occupied homes | 84.4%±5.8 pts | 84.8% | no clear change |
| Renter-occupied homes | 15.6%±5.8 pts | 15.2% | – |
| Housing units | 2,801±152 | 7,412 | no clear change |
| Homeowner vacancy rate | 0.0%±1.6 pts | 0.6% | – |
| Rental vacancy rate | 0.0%±8.6 pts | 4.5% | – |
| Single-family detached homes | 82.2%±6.4 pts | 87.1% | – |
| Mobile homes | 0.6%±1.0 pts | 1.6% | – |
| Built 2020 or later | 0.0%±1.3 pts | 0.0% | – |
| Built 2010 to 2019 | 5.2%±2.5 pts | 6.0% | – |
| Built 1939 or earlier | 16.9%±5.9 pts | 21.1% | – |
| Households with no vehicle | 0.8%±1.1 pts | 2.1% | – |
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 Monticello Township work and get to work?
91.8% of Monticello Township's workers drive alone and 6.3% work from home. The average trip to work takes 23.1 minutes.
| Measure | Monticello Township | Piatt County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 64.3%±4.3 pts | 65.0% | – |
| Unemployment rate | 0.5%±0.8 pts | 2.8% | – |
| Drove alone to work | 91.8%±3.9 pts | 84.6% | – |
| Carpooled | 1.6%±2.2 pts | 5.7% | – |
| Public transportation | 0.0%±1.1 pts | 0.1% | – |
| Walked | 0.3%±0.5 pts | 1.7% | – |
| Worked from home | 6.3%±3.4 pts | 7.3% | no clear change |
| Mean travel time to work | 23.1 min±2.7 | 24.0 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 Monticello Township?
1 census tract lies mostly in Monticello Township, and 3 more reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9546Piatt County | 6,661 | $98,914 |
| Tract 9547Piatt County | 3,487 | $81,827 |
| Tract 9545Piatt County | 4,038 | $99,625 |
| Tract 9548Piatt County | 2,509 | $87,159 |
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 Monticello Township) · Census block assignment files
How does Monticello Township compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Monticello Township is the 1,917th-most populous of the 16,079 U.S. towns and townships that have one and the 214th-most populous of 1,407 in Illinois.
Monticello Township ranks 354th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 214th | 1,407 |
| Growth 2020-2025 (PEP) | 122nd | 1,347 |
| Residents per square mile | 956th | 1,383 |
| Median household income | 354th | 1,380 |
| Per capita income | 274th | 1,383 |
| Median home value | 543rd | 1,379 |
| Median gross rent | 258th | 1,280 |
| Bachelor's degree or higher | 296th | 1,369 |
| Median age | 200th | 1,383 |
| Owner-occupied share | 381st | 1,382 |
| Work from home | 879th | 1,015 |
| Travel time to work | 909th | 1,382 |
Monticello Township's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Monticello Township 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 Monticello Township?
22 of the 57 figures for Monticello Township 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 Monticello Township 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.