Saint Peter, IL Profile: Facts, Map & Data


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Saint Peter, Illinois - Basic Facts

The Village of Saint Peter had a population of 344 as of July 1, 2016. Saint Peter ranks in the lower quartile for 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 Saint Peter is located at latitude 38.8676 and longitude -88.8504 in Fayette County. The formal boundaries for the Village of Saint Peter (see map below) encompass a land area of 0.52 sq. miles and a water area of 0 sq. miles. Fayette County is in the Central time zone (GMT -6). The elevation is 597 feet.

The Village of Saint Peter (GNIS ID: 2399171) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Saint Peter is located within Township of Lone Grove, a minor civil division (MCD) of Fayette County.

Beneath the boundary map are tables with Saint Peter population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Village of Saint Peter, IL Boundary Map

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Boundary Maps: Township of Lone Grove | Fayette County | Illinois Counties

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Saint Peter, IL Data & Demographics (As of July 1, 2016)


Total Population 344
Population in Households 344
Population in Familes 292
Population in Group Qrtrs 0
Population Density1 661
Diversity Index2 3


Total Households 149
Average Household Size 2.31
Family Households 106
Average Family Size 3


Total Housing Units 160 (100%)
Owner Occupied HU 131 (81.9%)
Renter Occupied HU 19 (11.9%)
Vacant Housing Units 11 ( 6.9%)
Median Home Value $69,375
Average Home Value $110,496


Median Household Income $37,060
Average Household Income $48,552
Per Capita Income $20,985
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.68% -0.53%
Households -0.42% -0.27%
Families 1.1% -0.38%
Median Household Income   -0.48%
Per Capita Income   1.93%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Saint Peter, IL - Peer Comparisons by Rank and Percentile

The table below compares Saint Peter to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2016 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.

Variable Description Rank Percentile
Total Population # 1052 23rd
Population Density1 # 977 29th
Diversity Index2 # 1335 2nd
Median Household Income # 1230 10th
Per Capita Income # 1149 16th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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