Population
769 residents
Census ACS 2023 - Illinois
City profile · Illinois · Census ACS 2023
Population, income, housing, safety, climate and schools for Lake Petersburg - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.
Lake Petersburg - the verdict
Nationally, Lake Petersburg sits in the 89th percentile for household income among US cities with a population of 1,000 or more. Source: Census ACS.
Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.
769 people live in Lake Petersburg, Illinois - a small town by U.S. Census Bureau ACS 2023 estimates. Median household income here is $124,643 per year, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 0.0%. Home values in Lake Petersburg run a median of $336,200, and the median resident age is 59.0 years. Educational attainment runs 40.6% of adults with a bachelor's degree or higher. Separately, 54.2% of working-age residents are in the labor force.
Illinois tracks close to the national cost-of-living baseline: BEA Regional Price Parities 2024 puts Illinois at 100.0 on a 100-equals-national-average scale (Near Average). A typical two-bedroom carries a HUD Fair Market Rent of $1,203 per month statewide. Statewide, average monthly utility bills in Illinois run around $240, per EIA 2023 residential energy data. On FEMA's National Risk Index, this area rates 28.7 out of 100 for natural-hazard exposure (Very Low).
Population
769 residents
Census ACS 2023 - Illinois
Median Household Income
$124,643 /yr
Poverty 0.0%
Cost of Living Index (state)
100.0 (US=100)
Near Average - BEA RPP 2024, Illinois average
Lake Petersburg measured against every US city with 1,000+ residents, computed live from the same Census and FBI data shown throughout this page.
"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.
Each percentile compares Lake Petersburg against every qualifying US city; each in-state rank narrows that to Illinois only. Full formula and direction notes: methodology.
Illinois-relative analysis
Among the 1,335 Illinois cities PlainCities tracks with reported poverty rate data, Lake Petersburg ranks #1,245 - the 0th percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Lake Petersburg only against its own state's cities, not the full US field.
Ranked by raw value (highest first); a higher rank is not automatically "better" for every measure, see each metric's own context above. This is a comparison within Illinois only, not a livability score. See the methodology for the source and calculation.
89th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.
How Lake Petersburg's home value compares nationally
Median home value vs. every US city (population 1,000+)
$336,200 30th percentile more affordable than 30% of 15,600 US cities
Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau ACS 5-Year Estimates · 2023
Census ACS S1501, educational attainment
Census ACS S1701, poverty status
Census ACS S2301, share of working-age residents in the labor force
How workers travel to work, Census ACS 2023
Based on 371 workers 16 and over.
State-average estimates for Illinois - EIA 2023 residential energy data
Estimates reflect Illinois state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.
Cost of living is a Illinois state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Lake Petersburg sits in
Population-matched peers from other states, closest to Lake Petersburg's 769 residents (Census ACS 5-Year 2023).
Median-household-income-matched peers from other states, closest to Lake Petersburg's $124,643 (Census ACS 5-Year 2023, table B19013).
City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.
Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).
| City | Population | Median Household Income |
|---|---|---|
| Lake Petersburg (this city) | 769 | $124,643 |
| Kirkwood | 769 | $70,385 |
| West Salem | 769 | $50,500 |
| Bartelso | 768 | $93,929 |
Lake Petersburg, IL counts 769 residents according to U.S. Census Bureau ACS 2023 estimates.
Median annual household income in Lake Petersburg runs $124,643, based on Census ACS 2023 data.
BEA does not publish a city-level cost-of-living figure for Lake Petersburg; the closest available measure is the Illinois state average, a cost of living index of 100.0 (U.S. average = 100), rated "Near Average" based on BEA Regional Price Parities 2024 data. Costs within Illinois vary by metro area.
Homes in Lake Petersburg carry a median value of $336,200, according to Census ACS 2023 estimates.
Source: U.S. Census Bureau ACS 5-Year 2023, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.
Read our methodology - how this data is sourced, computed, and verified.
Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.
Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.