Saint Peters, MO Profile: Facts, Map & Data


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Saint Peters, Missouri - Basic Facts

The City of Saint Peters is the 10th largest city in Missouri with a population of 57,890 as of July 1, 2017. Saint Peters ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Missouri. See peer rankings below.

The primary coordinate point for Saint Peters is located at latitude 38.7835 and longitude -90.6051 in St. Charles County. The formal boundaries for the City of Saint Peters (see map below) encompass a land area of 22.38 sq. miles and a water area of 0 sq. miles. St. Charles County is in the Central time zone (GMT -6). The elevation is 443 feet.

The City of Saint Peters (GNIS ID: 2396518) 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 City of Saint Peters is located within Township of Saint Peters, a minor civil division (MCD) of St. Charles County.

Beneath the boundary map are tables with Saint Peters population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of Saint Peters, MO Boundary Map

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Boundary Maps: Township of Saint Peters | St. Charles County | Missouri Counties

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Saint Peters, MO Data & Demographics (As of July 1, 2017)


Total Population 57,890
Daytime Population: Workers 29,397
Daytime Population: Residents 26,501
Total Daytime Population (TDP) 55,898
Ratio TDP/Total Population1 0.97
Population in Households 57,560
Population in Familes 47,974
Population in Group Qrtrs 330
Population Density2 2,587
Diversity Index3 24


Median Household Income $76,404
Average Household Income $87,995
Per Capita Income $34,413


Total Housing Units 23,940 (100%)
Owner Occupied HU 18,517 (77.3%)
Renter Occupied HU 4,592 (19.2%)
Vacant Housing Units 832 ( 3.5%)
Median Home Value $183,782
Average Home Value $201,310


Total Households 23,108
Average Household Size 2.49
Family Households 16,003
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 1.34% 1.31%
Households 1.42% 1.38%
Families 1.62% 1.26%
Median Household Income   1.46%
Per Capita Income   2.37%

Saint Peters, MO - Peer Comparisons by Rank and Percentile

The table below compares Saint Peters to the other 1,032 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2017 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 # 10 99th
Population Density # 76 93rd
Diversity Index # 211 80th
Median Household Income # 63 94th
Per Capita Income # 87 92nd

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

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