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St. Peter, IL
Village in Fayette County, Illinois.
Population
338
Land area
0.5sq mi
People per sq mi
649
ZIP codes
0
St. Peter and its ZIP codes
St. Peter at a glance
- St. Peter is about 2.8 times as dense as Illinois as a whole.
Local data for St. Peter, IL
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Fayette County. PPP loans are for St. Peter.
Unemployment rate
3.9%
Aug 2026, -1.0 pts in a year
Average annual pay
$46,761
4,954 jobs, 2025
Income per person
$49,155
BEA, 2024
Federal spending
$123M
FY 2026, $5,747 per person
Environment and hazard risk
St. Peter, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: earthquake
Storm events since 1996
325
Countywide, mostly thunderstorm wind
Flood insurance policies
2
0.0% of homes, county
July high / Jan low
87° / 21°F
41.2 inches of rain a year
Health statistics
Share of adults in St. Peter, IL, CDC PLACES estimates
Obesity
41.8%
U.S. 33.3% +8.5 pts
Diabetes
15.7%
U.S. 12.1% +3.6 pts
Smoking
21.5%
U.S. 12.8% +8.7 pts
Uninsured (18-64)
10.3%
U.S. 11.1% -0.8 pts
Cities near St. Peter
| Name | Distance | Land area (sq mi) |
|---|---|---|
| FarinaVillage | 4.8 mi | 1.5 |
| KinmundyCity | 6.7 mi | 1.2 |
| La CledeCensus-designated place | 7.4 mi | 0.3 |
| BrownstownVillage | 10 mi | 0.8 |
| AlmaVillage | 11 mi | 1.1 |
| EdgewoodVillage | 11 mi | 1 |
| St. ElmoCity | 11 mi | 1.5 |
| IolaVillage | 12 mi | 1 |
| MasonTown | 13 mi | 1.3 |
| VernonVillage | 14 mi | 0.9 |
| AltamontCity | 14 mi | 1.5 |
| VandaliaCity | 15 mi | 8.1 |
| PatokaVillage | 15 mi | 1.1 |
| SalemCity | 17 mi | 7 |
| IukaVillage | 18 mi | 0.7 |
| WatsonVillage | 19 mi | 1.1 |
Frequently asked questions
- What county is St. Peter, IL in?
- St. Peter is in Fayette County, Illinois.
- What is the population of St. Peter, IL?
- About 338 people live in St. Peter, based on American Community Survey 5-year estimates.
- What cities are near St. Peter?
- Nearby places include Farina (4.8 mi), Kinmundy (6.7 mi), La Clede (7.4 mi), Brownstown (10 mi), Alma (11 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023