St. Louis County, MO has a population of roughly 288,512, though it has been declining at 1.0% per year.

Population growth patterns reveal how communities are evolving. This chart shows historical population changes by age group and projects future trends based on demographic patterns.

Jobs by industry sector since 2012. Switch between local jobs — counted where the jobs are located — and resident jobs, counted where the workers live. On the local view the most recent year is a nowcast: it grows the latest local LODES job mix forward using recent county employment growth from QCEW and the BLS local employment series, so the newest point tracks today's economy instead of data that is roughly two years old.

St. Louis County, MO has roughly 141,011 households, though population has been declining at 1.0% per year.

Understanding how households at different income levels are growing or declining helps identify which groups face the greatest housing pressure and where new housing is most needed.

The housing stock in St. Louis County, MO is relatively mixed, with detached single-family as the most common type at 43%. In St. Louis County, MO, renters make up the majority, with only 38% of units owner-occupied.

Households may have different structure type preferences depending on characteristics such as household size, income, employment, presence of children, age of individuals, and lifestyle choices. Understanding the housing stock in corresponding terms helps assess how well existing units align with existing households' ideals.

The mix of housing types and ownership patterns shapes a community's character. This chart breaks down housing units by structure type and whether they're owner-occupied or rented.