Also See Fenton, MO: ZIP Codes & Maps
The City of Fenton had a population of 4,009 as of July 1, 2025.
The primary coordinate point for Fenton is located at latitude 38.5131 and longitude -90.436 in St. Louis County. The formal boundaries for the City of Fenton encompass a land area of 6.2 sq. miles and a water area of 0.32 sq. miles. St. Louis County is in the Central time zone (GMT -6).
The City of Fenton 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 Fenton is located within Township of Bonhomme, a minor civil division (MCD) of St. Louis County.
POPULATION | |
|---|---|
| Total Population | 4,009 (100%) |
| Population in Households | 3,975 (99.2%) |
| Population in Families | 3,517 (87.7%) |
| Population in Group Quarters1 | 34 ( 0.8%) |
| Population Density | 639 |
| Diversity Index2 | 22 |
INCOME | |
| Median Household Income | $109,408 |
| Average Household Income | $144,691 |
| % of Income for Mortgage4 | 22% |
| Per Capita Income | $56,290 |
| Wealth Index5 | 155 |
| Socioeconomic Status Index6 | Moderate (58.7) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 1,591 (100%) |
| Owner Occupied HU | 1,381 (86.8%) |
| Renter Occupied HU | 178 (11.2%) |
| Vacant Housing Units | 32 ( 2.0%) |
| Median Home Value | $382,820 |
| Average Home Value | $438,407 |
| Housing Affordability Index3 | 101 |
HOUSEHOLDS | |
| Total Households | 1,559 |
| Average Household Size | 2.55 |
| Family Households | 1,145 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 0.10% | -0.02% |
| Households | -0.04% | 0.03% |
| Families | -0.09% | |
| Median Household Income | 2.44% | |
| Per Capita Income | 2.87% | |
| Owner Occupied HU | 0.17% |
The table below compares Fenton to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2025 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 | # 178 | 84th |
| Population Density | # 567 | 48th |
| Median Household Income | # 75 | 93rd |
| Housing Affordability Index | # 490 | 45th |
| Per Capita Income | # 75 | 93rd |
| Diversity Index | # 524 | 51st |
Additional comparisons and rankings can be made with a VERY EASY TO USE Missouri Census Data Comparison Tool.
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