What are the schools like in Lake Petersburg, IL?

Lake Petersburg is served primarily by Porta CUSD 202. The district operates 2 elementary schools, several middle schools, and 1 high schools with a student-to-teacher ratio of 12.6:1.

What is the median household income in Lake Petersburg?

The median household income in Lake Petersburg, IL is $113,897 according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 2.3%.

What is the weather like in Lake Petersburg, IL?

Lake Petersburg has an average high temperature of 34.4°F in January and 85.5°F in July. Annual precipitation averages 36.5 inches and annual snowfall averages 18.4 inches.

Lake Petersburg, IL Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is Lake Petersburg, IL affordable or expensive?

Lake Petersburg's cost of living index is 90, where 100 represents the national average. This means Lake Petersburg is 10% less expensive than the average US city. The median home value is $315,600 and the median rent is N/A per month.

Q: What is the crime rate in Lake Petersburg, IL?

Crime rate data for Lake Petersburg is not currently available from the FBI's reported data.

Is Lake Petersburg, IL a Good Place to Live?

Lake Petersburg is a small town of 763 in Illinois, with a median household income of $113,897 and a 2.3% unemployment rate. Its cost of living index is 90 (US average = 100), which is 10% below the national average.

Strengths: Lake Petersburg stands out for an affordable cost of living, solid school ratings (A), a well-educated population.

Trade-offs: Potential downsides include longer commutes. Whether Lake Petersburg is right for you depends on your priorities — the full breakdown is below.

All Lake Petersburg city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 90.5

Lake Petersburg's overall cost of living index is 90.5, where 100 represents the US national average. Living in Lake Petersburg costs roughly 10% less than the average American city.

Metric	Lake Petersburg, IL	National Avg
Median Home Value	$315,600	$244,900
Median Monthly Rent	N/A	$1,163
Homeownership Rate	98.1%	65.9%
Median Household Income	$113,897	$74,755

Crime & Safety

Crime data for Lake Petersburg is not currently available from the FBI's Uniform Crime Reporting program. Not all local agencies report to the UCR each year.

Schools & Education

Lake Petersburg is served primarily by Porta CUSD 202. The student-to-teacher ratio is 12.6:1 (better than the national average of ~16:1).

Metric	Lake Petersburg, IL	National Avg
School District	Porta CUSD 202	—
Elementary Schools	2	—
Middle Schools	N/A	—
High Schools	1	—
Student/Teacher Ratio	12.6:1	16:1
Bachelor's Degree or Higher	39.2%	35.4%
High School Diploma or Higher	98.6%	91.1%

Weather & Climate

Lake Petersburg sees average highs of 34.4°F in January and 85.5°F in July, with 36.5 inches of annual precipitation and 18.4 inches of snow per year.

Metric	Lake Petersburg, IL
Average High — January	34.4°F
Average High — July	85.5°F
Annual Precipitation	36.5"
Annual Snowfall	18.4"

Demographics

Metric	Lake Petersburg, IL	National Avg
Population	763	—
Median Age	59.5	38.9
Unemployment Rate	2.3%	3.7%
Avg Commute Time	34.5 min	26 min
White (non-Hispanic)	93.6%	59.3%
Black or African American	0.0%	13.6%
Hispanic or Latino	0.0%	18.9%
Asian	2.2%	6.3%
Under 18	13.4%	22.2%
65 and over	36.7%	16.8%

Nearby Cities

Petersburg, IL 2 mi Tallula, IL 5 mi Athens, IL 7 mi Pleasant Plains, IL 8 mi Greenview, IL 9 mi

ZIP Codes in Lake Petersburg

Lake Petersburg, IL is covered by 1 ZIP code:

62675

Lake Petersburg vs Other Cities

Lake Petersburg, IL vs Petersburg, IL Lake Petersburg, IL vs Tallula, IL Lake Petersburg, IL vs Athens, IL Lake Petersburg, IL vs Pleasant Plains, IL Lake Petersburg, IL vs Greenview, IL

Frequently Asked Questions

Is Lake Petersburg, IL affordable or expensive?

Lake Petersburg's cost of living index is 90, where 100 is the national average. That makes Lake Petersburg roughly 10% less expensive than a typical US city — a meaningful affordability advantage. The median home price is $315,600 and median rent is N/A/month.

What is the crime rate in Lake Petersburg, IL?

Crime data for Lake Petersburg is not available in the current FBI UCR reporting year. Not all jurisdictions submit data annually.

What are the schools like in Lake Petersburg?

Public schools in Lake Petersburg are operated by Porta CUSD 202. The district has 2 elementary, several middle, and 1 high schools. The student-to-teacher ratio is 12.6:1. 39.2% of adults 25+ hold a bachelor's degree or higher.

Is Lake Petersburg, IL a good place to live?

Lake Petersburg, IL has a population of 763, a median household income of $113,897, and an unemployment rate of 2.3%. It offers below-average costs of living, which stretches take-home pay further than in most American cities. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in Lake Petersburg?

Lake Petersburg averages 34.4°F in January and 85.5°F in July. Annual rainfall is 36.5 inches with about 18.4 inches of snow per year. Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in Lake Petersburg?

Lake Petersburg, IL is covered by 1 ZIP code: 62675.

What is the population of Lake Petersburg?

The population of Lake Petersburg, Illinois is 763 with a median age of 59.5. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in Lake Petersburg?

Key numbers for living in Lake Petersburg: cost of living index 90 (100 = US average), median home $315,600, median household income $113,897, schools rated A. Whether these are benefits or drawbacks depends on where you're coming from — compare Lake Petersburg side by side with your current city to see the trade-offs.