OFallon Station, MO Profile: Facts & Data


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OFallon Station, Missouri - Basic Facts

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The City of O'Fallon is the 7th largest city in Missouri with a population of 93,589 as of July 1, 2022. OFallon Station 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 OFallon Station is located at latitude 38.8106 and longitude -90.6998 in St. Charles County. The formal boundaries for the City of O'Fallon encompass a land area of 29.64 sq. miles and a water area of 0 sq. miles. St. Charles County is in the Central time zone (GMT -6). The elevation is 541 feet.

The City of O'Fallon 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 O'Fallon is located within Township of O'Fallon, a minor civil division (MCD) of St. Charles County.

Alternate Unofficial Names for OFallon Station: O'Fallon Station.

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  1. OFallon Station 2022 Demographic Data
  2. Growth Rates for OFallon Station (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Missouri Research Tools (Easy Tools & Current Data)
  3. Missouri Data Comparison Tool - 2022 Demographics

OFallon Station, MO Data & Demographics (As of July 1, 2022)


Total Population 93,589 (100%)
Population in Households 93,182 (99.6%)
Population in Families 80,507 (86.0%)
Population in Group Quarters1 407 ( 0.4%)
Population Density 3,117
Diversity Index2 37


Median Household Income $101,793
Average Household Income $127,352
% of Income for Mortgage4 14%
Per Capita Income $46,682
Wealth Index5 127


Total HU (Housing Units) 35,475 (100%)
Owner Occupied HU 28,620 (80.7%)
Renter Occupied HU 5,684 (16.0%)
Vacant Housing Units 1,171 ( 3.3%)
Median Home Value $271,647
Average Home Value $303,037
Housing Affordability Index3 171


Total Households 34,304
Average Household Size 2.72
Family Households 25,514
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2020-2022 2022-2027
Population 1.10% 0.57%
Households 1.15% 0.67%
Families   0.64%
Median Household Income   1.80%
Per Capita Income   2.67%
Owner Occupied HU   0.75%

OFallon Station, MO - Peer Comparisons by Rank and Percentile

The table below compares OFallon Station to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2022 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 # 7 99th
Population Density # 59 95th
Median Household Income # 52 95th
Housing Affordability Index # 591 55th
Per Capita Income # 72 93rd
Diversity Index # 156 85th

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

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