Lake Petersburg CDP, Illinois demographics
Population: 665
Median age: 60.2
Median household income: 105,202
Lake Petersburg is a CDP in Menard County, Illinois, United States.
Demographics, population, home values, social and economic characteristics of Lake Petersburg CDP, IL.
Population
| 2021 | 665 |
| 2020 | 547 |
| 2019 | 449 |
| 2018 | 553 |
| 2017 | 574 |
| 2016 | 649 |
| 2015 | 628 |
| 2014 | 667 |
| 2013 | 672 |
| 2012 | 778 |
| 2011 | 723 |
| 2010 | 860 |
Census data for Lake Petersburg CDP, Illinois
Demographic and housing estimates in Lake Petersburg CDP, Illinois
| Total population | 665 |
| Male | 351 |
| Female | 314 |
| Total population | 665 |
| Under 5 years | 19 |
| 5 to 9 years | 0 |
| 10 to 14 years | 40 |
| 15 to 19 years | 11 |
| 20 to 24 years | 6 |
| 25 to 34 years | 31 |
| 35 to 44 years | 23 |
| 45 to 54 years | 100 |
| 55 to 59 years | 101 |
| 60 to 64 years | 61 |
| 65 to 74 years | 187 |
| 75 to 84 years | 71 |
| 85 years and over | 15 |
| Median age (years) | 60.2 |
| Under 18 years | 70 |
| 16 years and over | 606 |
| 18 years and over | 595 |
| 21 years and over | 595 |
| 62 years and over | 324 |
| 65 years and over | 273 |
| Total population | 665 |
| One race | 628 |
| White | 613 |
| Black or African American | 0 |
| American Indian and Alaska Native | 0 |
| Asian | 15 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 0 |
| Two or more races | 37 |
| Citizen, VOTING AGE 18 and over population | 577 |
| Male Citizen, VOTING AGE 18 and over population | 319 |
| Female Citizen, VOTING AGE 18 and over population | 258 |
Social characteristics in Lake Petersburg CDP, Illinois
| Total households | 347 |
| Family households (families) | 222 |
| Married-couple family | 7 |
| Male householder, no wife present, family | 56 |
| Female householder, no husband present, family | 56 |
| Nonfamily households | 62 |
| Average household size | 195 |
| Average family size | 1.92 |
Economic characteristics in Lake Petersburg CDP, Illinois
| Total households | 347 |
| Less than $10,000 | 0 |
| $10,000 to $14,999 | 0 |
| $15,000 to $24,999 | 11 |
| $25,000 to $34,999 | 21 |
| $35,000 to $49,999 | 11 |
| $50,000 to $74,999 | 38 |
| $75,000 to $99,999 | 76 |
| $100,000 to $149,999 | 160 |
| $150,000 to $199,999 | 15 |
| $200,000 or more | 15 |
| Median household income (dollars) | 105,202 |
Housing characteristics in Lake Petersburg CDP, Illinois
| Total housing units | 390 |
| Occupied housing units | 347 |
| Vacant housing units | 43 |
| Total housing units | 390 |
| 1-unit, detached | 390 |
| 1-unit, attached | 0 |
| 2 units | 0 |
| 3 or 4 units | 0 |
| 5 to 9 units | 0 |
| 10 to 19 units | 0 |
| 20 or more units | 0 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 390 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 24 |
| Built 2000 to 2009 | 38 |
| Built 1990 to 1999 | 11 |
| Built 1980 to 1989 | 23 |
| Built 1970 to 1979 | 123 |
| Built 1960 to 1969 | 133 |
| Built 1950 to 1959 | 26 |
| Built 1940 to 1949 | 0 |
| Built 1939 or earlier | 12 |
| Total housing units | 390 |
| 1 room | 0 |
| 2 rooms | 0 |
| 3 rooms | 32 |
| 4 rooms | 93 |
| 5 rooms | 20 |
| 6 rooms | 30 |
| 7 rooms | 42 |
| 8 rooms | 51 |
| 9 rooms or more | 122 |
| Median rooms | 7.0 |
| Total housing units | 390 |
| No bedroom | 0 |
| 1 bedroom | 11 |
| 2 bedrooms | 131 |
| 3 bedrooms | 120 |
| 4 bedrooms | 121 |
| 5 or more bedrooms | 7 |
| Occupied housing units | 347 |
| Owner-occupied | 339 |
| Renter-occupied | 8 |
| Average household size of owner-occupied unit | 1.94 |
| Occupied housing units | 347 |
| Moved in 2017 or later | 27 |
| Moved in 2015 to 2016 | 42 |
| Moved in 2010 to 2014 | 100 |
| Moved in 2000 to 2009 | 37 |
| Moved in 1990 to 1999 | 90 |
| Moved in 1989 and earlier | 51 |
| Owner-occupied units | 339 |
| Less than $50,000 | 0 |
| $50,000 to $99,999 | 11 |
| $100,000 to $149,999 | 26 |
| $150,000 to $199,999 | 46 |
| $200,000 to $299,999 | 156 |
| $300,000 to $499,999 | 100 |
| $500,000 to $999,999 | 0 |
| $1,000,000 or more | 0 |
| Median (dollars) | 266,600 |
| Owner-occupied units | 339 |
| Housing units with a mortgage | 201 |
| Housing units without a mortgage | 138 |
| Occupied units paying rent | 8 |
| Less than $500 | 0 |
| $500 to $999 | 8 |
| $1,000 to $1,499 | 0 |
| $1,500 to $1,999 | 0 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| No rent paid | 0 |
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