Buffalo, Sangamon County, Illinois
Village in Sangamon County, Illinois · ZIP 62515
- Sangamon County
- Within Mechanicsburg Township
- Census data · ACS 2019-2023
- 3 public schools
- 436 (2024 estimate)Population
- 171Households
- $67,321Median household income
- $122,400Median home value
- 3Public schools
- 1ZIP codes
About Buffalo
This page shows only what has been published about Buffalo: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.
Town intelligenceOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 491 |
| 2010 | 503 |
| 2020 | 447 |
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, place level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 17, retrieved November 14, 2026.
Median household income $67,321 · 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, place level, state 17, retrieved November 14, 2026.
- Owner occupied
- 123 units
- Renter occupied
- 48 units
- Vacancy rate
- 13.2%
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, place level, state 17, retrieved November 14, 2026.
| Measure | Buffalo | Sangamon County | Illinois |
|---|---|---|---|
| Population | 405 | 195,217 | 12,692,653 |
| Median household income | $67,321 | $74,114 | $81,702 |
| Median age | 48.6 | 40.8 | 38.9 |
| Median home value | $122,400 | $170,300 | $250,500 |
| Bachelor’s degree or higher | 30.2% | 35.1% | 37.2% |
| Foreign-born residents | 7.9% | 3.3% | 14.4% |
| Owner-occupied homes | 71.9% | 70.6% | 66.8% |
| Mean commute to work | 25.6 minutes | 19.5 minutes | 28.1 minutes |
Source: American Community Survey 5-year data profile 2019–2023, place level, state 17, retrieved November 14, 2026.
CommunityRules and moderation
Events in BuffaloAll events
No upcoming event is listed in Buffalo yet. Members and businesses add events from the Events page; each is screened before it shows.
Schools
| School | Type | Grades | District |
|---|---|---|---|
| Tri-City Elem School | Public | Pre-K–5 | Tri City CUSD 1 |
| Tri-City Jr High School | Public | 6–8 | Tri City CUSD 1 |
| Tri-City High School | Public | 9–12 | Tri City CUSD 1 |
Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.
Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.
Frequently asked about BuffaloPromoted from questions people asked
No question about Buffalo has been asked often enough to publish an answer yet. Ask Buffalo and the answer, once a person checks it, appears here.
Nearby towns
- Mechanicsburg TownshipTownship
- DawsonVillage
- MechanicsburgVillage
- Buffalo Hart TownshipTownship
- Lanesville TownshipTownship
- CornlandCensus designated place
- RivertonVillage
- Clear Lake TownshipTownship
- SpauldingVillage
- Cooper TownshipTownship
Other towns in Sangamon County
- AuburnCity
- Auburn TownshipTownship
- Ball TownshipTownship
- BerlinVillage
- Buffalo Hart TownshipTownship
- CantrallVillage
- Capital TownshipTownship
- Cartwright TownshipTownship
- ChathamVillage
- Chatham TownshipTownship
Other places named Buffalo in Illinois
- Buffalo TownshipTownship