Lake Petersburg is a city located in Cass County and Menard County Illinois. Lake Petersburg has a 2024 population of 959. Lake Petersburg is currently growing at a rate of 11.38% annually and its population has increased by 75.32% since the most recent census, which recorded a population of 547 in 2020.
The average household income in Lake Petersburg is $126,154 with a poverty rate of 0%. The median age in Lake Petersburg is 59.5 years: 59.4 years for males, and 59.8 years for females.
According to the most recent ACS, the racial composition of Lake Petersburg was:
White
Two or more races
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 369 | 2.07 | 98.1 | 1.9 |
| Married | 248 | 2.51 | 100 | 0 |
| Non Family | 112 | 1.07 | 93.8 | 6.3 |
| Female | 9 | 2.33 | 100 | 0 |
| Male | 0 | 0 | 0 | 0 |
2.5
Average Family Size
2.07
Average Household Size
98.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among asian people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 52.94%.
All
Male
Female
$62,907
Average Earnings
$65,956
Average Male
$29,861
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
92.68% of Lake Petersburg residents speak only English, while 7.32% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 5.66% of the population.
Married
Widowed
Divorced
Separated
NeverMarried
75.5%
Overall Marriage Rate
79.8%
Male Marriage Rate
70.9%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
9.64%
Veteran Disability Rate
LaborForceParticipation
52.9%
Labor Force Participation
51.7%
Employment Rate
2.3%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
88.47%
Born in Lake Petersburg
96.2%
Native Born
3.8%
Foreign Born
2.62%
Non Citizen
1.18%
Naturalized
96.2% of Lake Petersburg residents were born in the United States, with 88.47% having been born in Illinois. 2.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.