St. Louis, MO-IL · Missouri

Washington County

23,483 residents0 permits TTM$51,886 median HHI10 ZIP codesUpdated April 16, 2026
Investor first look

Median home value

$118,400

ACS 5-Year

Cap rate proxy

12.3%

FMR × 0.65 ÷ Home Value

Rent-to-income

15.7%

HUD FMR ÷ ACS HHI

Net migration

+1.34%

IRS SOI

Permits (TTM)

0

Census BPS

Climate risk

67.8

FEMA NRI (0–100)

ZIP code breakdown10 ZIP codes
ZIPMedian home valueRent (FMR 2BR)Gross yieldBuy Box scoreSection 8 gap
636600.5
636480.4
636640.4
636300.4
63030$118,400$1,04010.5%52.9%
63071$118,400$1,07010.8%57.4%
63622
63626
63631
63674

Sort by any column. Click a ZIP for detail.

Demographics

Owner-occupied

76.3%

Census ACS

Vacancy rate

17.4%

Census ACS

Bachelor's degree +

12.4%

Census ACS

Rent burdened

39.0%

Census ACS (>30% income)

Median age

40.2

Census ACS

Data sources
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026