Piatt County, Illinois
Piatt County, Illinois · ZIP 61813, 61818, 61830
- Census data · ACS 2019-2023
- 16,628 (2024 estimate)Population
- 6,851Households
- $87,516Median household income
- $173,200Median home value
- 18Towns with a page
- 15ZIP codes
Piatt County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 16,365 |
| 2010 | 16,729 |
| 2020 | 16,673 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 17, retrieved November 14, 2026.
Median household income $87,516 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 17, retrieved November 14, 2026.
- Owner occupied
- 5,851 units
- Renter occupied
- 1,000 units
- Vacancy rate
- 7.2%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.
2,535 employees in 339 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 17, retrieved November 14, 2026.
| Measure | Piatt County | Illinois |
|---|---|---|
| Population | 16,702 | 12,692,653 |
| Median household income | $87,516 | $81,702 |
| Median age | 42.5 | 38.9 |
| Median home value | $173,200 | $250,500 |
| Bachelor’s degree or higher | 31.9% | 37.2% |
| Foreign-born residents | 0.9% | 14.4% |
| Owner-occupied homes | 85.4% | 66.8% |
| Mean commute to work | 23.7 minutes | 28.1 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 17, retrieved November 14, 2026.
Townships, towns and villages in Piatt County18 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Monticello Township | Township | 6,161 | 48.0 sq mi |
| Monticello | City | 6,010 | 4.03 sq mi |
| Sangamon Township | Township | 2,502 | 47.1 sq mi |
| Cerro Gordo Township | Township | 1,872 | 60.3 sq mi |
| Bement Township | Township | 1,611 | 48.3 sq mi |
| Bement | Village | 1,452 | 0.78 sq mi |
| Unity Township | Township | 1,386 | 48.1 sq mi |
| Blue Ridge Township | Township | 1,368 | 63.6 sq mi |
| Cerro Gordo | Village | 1,295 | 0.73 sq mi |
| Atwood | Village | 1,097 | 0.62 sq mi |
| Willow Branch Township | Township | 952 | 67.3 sq mi |
| Mansfield | Village | 918 | 0.51 sq mi |
| Goose Creek Township | Township | 776 | 56.4 sq mi |
| Hammond | Village | 498 | 0.76 sq mi |
| De Land | Village | 442 | 0.42 sq mi |
| Cisco | Village | 252 | 0.18 sq mi |
| White Heath | Census designated place | 197 | 0.34 sq mi |
| LaPlace | Census designated place | 130 | 0.65 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 17 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Piatt County
No job is posted in Piatt County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Piatt County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Champaign CountyPopulation 212,374 (2024 estimate)
- De Witt CountyPopulation 15,319 (2024 estimate)
- Douglas CountyPopulation 19,824 (2024 estimate)
- Macon CountyPopulation 100,737 (2024 estimate)
- McLean CountyPopulation 172,069 (2024 estimate)
- Moultrie CountyPopulation 14,365 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 17, retrieved November 14, 2026.