Also See: Petersburg, IL ZIP Codes & ZIP Code Maps
The Lake Petersburg CDP(1) had a population of 661 as of July 1, 2021. Lake Petersburg ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.
The primary coordinate point for Lake Petersburg is located at latitude 39.9836 and longitude -89.8621 in Menard County. The formal boundaries for the Lake Petersburg Census Designated Place encompass a land area of 1.76 sq. miles and a water area of 0.28 sq. miles. Menard County is in the Central time zone (GMT -6). The elevation is 597 feet.
The Lake Petersburg Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.
|Total Population||661 (100%)|
|Population in Households||661 (100.0%)|
|Population in Families||590 (89.3%)|
|Population in Group Quarters1||0|
|Median Household Income||$86,029|
|Average Household Income||$104,402|
|% of Income for Mortgage4||14%|
|Per Capita Income||$47,831|
|Total HU (Housing Units)||387 (100%)|
|Owner Occupied HU||294 (76.0%)|
|Renter Occupied HU||18 ( 4.7%)|
|Vacant Housing Units||76 (19.6%)|
|Median Home Value||$286,806|
|Average Home Value||$279,422|
|Housing Affordability Index3||139|
|Average Household Size||2.13|
|Average Family Size||2|
GROWTH RATE / YEAR
|Median Household Income||1.63%|
|Per Capita Income||1.9%|
|Owner Occupied HU||-0.62%|
The table below compares Lake Petersburg to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2021 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 828||40th|
|Population Density||# 1150||16th|
|Median Household Income||# 194||86th|
|Housing Affordability Index||# 195||14th|
|Per Capita Income||# 105||92nd|
|Diversity Index||# 1032||25th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.