---
type: Jurisdiction
title: "St. Louis County, MO"
classification: county
fips: "29189"
state: "MO"
demographics:
  population: 995569
  population_under_18: 218904
  population_18_64: 586346
  population_65_plus: 190319
  median_household_income: 82936
  poverty_rate: 9.79
  homeownership_rate: 69.24
  unemployment_rate: 4.33
  median_home_value: 276800
  gini_index: 0.4938
  vacancy_rate: 7.25
  race_white: 618307
  race_black: 240070
  race_asian: 48760
  race_native: 1148
  hispanic: 38412
  bachelors_plus: 470060
sources:
  - field: demographics
    source: Census ACS 2023
confidence: official
tags: [jurisdiction, county, mo]
timestamp: "2026-07-03"
---

# St. Louis County, MO

County jurisdiction — 5 officeholders mapped.

## Demographics (ACS 2023)

| Measure | Value |
| --- | --- |
| Population | 995569 |
| Under 18 | 218904 |
| 18–64 | 586346 |
| 65+ | 190319 |
| Median household income | 82936 |
| Poverty rate | 9.79 |
| Homeownership rate | 69.24 |
| Unemployment rate | 4.33 |
| Median home value | 276800 |
| Gini index | 0.4938 |
| Vacancy rate | 7.25 |
| White | 618307 |
| Black | 240070 |
| Asian | 48760 |
| Native | 1148 |
| Hispanic/Latino | 38412 |
| Bachelor's or higher | 470060 |

## Source

- demographics: Census ACS 2023