Counties / Missouri / Washington County

Washington County, MO

FIPS 29221 · population 23,470 · outside every metro area

$197k
Zillow home value · 2026-06
The numbers

What this county costs and earns

Everything here joins on the county FIPS code, so each figure comes from the agency that publishes it with no name matching in between.

Zillow home value
$197k
▲ 3.4% year over year
Zillow ZHVI · direct
ACS median gross rent
$684
occupied-unit survey; not current asking rent
Census ACS · surveyed
Gross yield
n/a
gross yield cannot be computed without measured market rent
requires both measured price and measured rent
HUD 2-bed standard
$888
the Section 8 payment standard
HUD Fair Market Rent · direct
Independent price check

Do two methods point the same way?

Zillow estimates a current home value. FHFA tracks repeat mortgage transactions. Their growth rates should be read side by side, not averaged.

Both annual signals move in the same direction
FHFA five-year cumulative+56.9%not annualized · through 2025
0%ZILLOW ZHVI2026-06+3.4%FHFA HPI2025+2.6%
Annual changes use different methods and may use different periods. The comparison checks direction and magnitude; it does not create a blended estimate. Zillow county ZHVI pulled 2026-07-26; FHFA annual county HPI pulled 2026-07-28.
Owner-reported value$129k
Surveyed gross rent$684
Rent burden 30%+55.0%
Median year built1985
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
16.9%vacant
10,734estimated housing units
Occupied tenure21.6% renter
owner 78.4%renter 21.6%
Structure mix67.8% single-family
Single-family 67.8%20+ units 0.0%Mobile home 27.5%Other 4.7%
ACS estimates describe the standing housing stock and occupied tenure. They do not measure current listings, transaction prices or asking rents.

Survey source: Census ACS 5-year — county housing value, tenure and stock · ACS 2024 5-year · pulled 2026-07-30. These values describe different housing universes and are not combined into gross yield.

Annual average covered jobs4,996▼ 0.1% from the prior annual release
Covered establishments783annual average reporting locations
Average weekly wage$794▲ 2.6% from the prior annual release
Largest private supersectorTrade, transportation, and utilities30.9% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS−0.1%WEEKLY WAGE+2.6%Trade, transportation, and utilities30.9%
Annual QCEW counts cover jobs located at reporting establishments. The industry share uses disclosed private covered employment; it is not a resident-employment measure or a forecast.

Workplace source: BLS QCEW — county employment and wages · annual county employment and wages 2025 vs 2024 · pulled 2026-07-31. QCEW counts covered jobs located in the county, not employed residents or the metro score’s CES/LAUS series.

County brief

What the local evidence says

01Decision frame

Washington County presents an appreciation-versus-cash-flow verification tension: investors able to source property-level rent and flood evidence can investigate, while income-dependent underwriting warrants caution. Zillow's county median home value is $196,763, up 3.38% in its supplied county observation. FHFA's separately supplied annual repeat-transaction HPI increased 2.63%; it supports the same direction but is not a home value, and its different method and vintage cannot be blended with Zillow into one growth rate.

02Housing economics

Carrying costs are measurable, but cash flow is not. The effective property-tax rate is 0.56%, and median annual tax is $719. Median asking market rent is not published, so gross yield cannot be computed. HUD's two-bedroom FMR is $888 per month, but it is a payment standard rather than asking rent and cannot fill the rent gap.

03Demand & competition

Workplace labor evidence is flat rather than a demand forecast: QCEW annual covered employment at county workplaces was 4,996, down 0.12%. Trade, transportation, and utilities is the largest disclosed private supersector, not the whole county economy. In Realtor.com MLS listings, median marketing time was 71 days and 20.05% of listings had price reductions, evidence of marketing friction and seller concessions rather than closed pricing or buyer demand proof. Tax returns showed 101 net inbound moving households, with incomers averaging $3,378 more income. Investor purchases accounted for 20 of 198 total purchases, a calculated 10.10% share; this shows participation, not rental absorption.

04Risk & next checks

Inland flood is the dominant hazard, and modeled expected annual building-value loss is 0.22%. That risk sits alongside tax carrying costs, but county-level evidence cannot establish a parcel's flood exposure, insurance terms, or prior losses. Current property-level asking rents and leases, flood-zone and insurance records, tax assessments, and comparable closed sales are not published here; their absence prevents a defensible cash-flow, hazard-cost, and exit-price underwriting conclusion.

Cities & communities

Where people live within Washington County

Census-recognized incorporated places and CDPs that intersect this county. The list does not pretend to include every neighborhood or informal community.

Population scale

Largest Census places

ACS 2024 5-year
Potosi city2.5KTerre du Lac CDP*2.5KIrondale city622Mineral Point town324Caledonia village209
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

5 Census places

Population
  1. 01
    Potosi cityIncorporated place
    2,544
  2. 02
    Terre du Lac CDPCensus-designated place · spans 2 counties
    2,516
  3. 03
    Irondale cityIncorporated place
    622
  4. 04
    Mineral Point townIncorporated place
    324
  5. 05
    Caledonia villageIncorporated place
    209

Population is the total place-wide ACS estimate, not an allocated county share. A place crossing a county line is labelled explicitly. Source: Census ACS 5-year — cities and communities · ACS 2024 5-year · pulled 2026-07-30.

Risk, demand and competition

The three things a price does not tell you

01
Risk & carrying costFEMA NRI + Census ACS
Dominant hazardinland flooding

0.215% of building value expected lost per year

Effective property tax0.56%

$719 median annual bill

02
DemandIRS SOI household flows
Net migration+101

555 in · 454 out

Arriving vs leaving income+$3,378

$45,056 arriving · $41,678 leaving

03
CompetitionHMDA financed purchases
Purchases by investors10.1%

20 of 198 mortgages

investorother financed
Current listing pressure

What sellers and visible supply are doing

Realtor.com® Economic Research · county inventory 2026-06 · pulled 2026-07-28
Active listings45▼ 1.1% year over year
Median days on market71▲ 34.1% year over year
Listings price-reduced20.1%seller-concession signal
Median listing pricen/a▲ 0.7% year over year

Listing price is an asking price, not a closed sale. Quality-flagged county rows are withheld instead of displayed.

No rent index is published for this county.Zillow’s county rent series does not cover every county, and estimating one from a neighbouring county would be a guess wearing a number’s clothes. Everything above is measured here; no wider market is mapped for it either.
Bear case

What can break the county thesis

  1. No published market rent leaves cash flow and gross yield unmeasured.
  2. Inland-flood exposure and property-specific insurance costs may differ materially from the county model.
  3. Listing-market friction may leave current asking prices unachieved at closing.
Underwriting questions

Before pricing a property

Can gross yield be calculated from this record?

No. Median asking market rent is not published, and HUD FMR cannot substitute for market rent.

What does the QCEW employment series measure?

Annual average covered jobs located at workplaces in the county; it is not resident employment, unemployment, or a forecast.

Are the Realtor.com figures closed-sale evidence?

No. They are MLS listing-market evidence: asking prices, visible active supply, marketing time, and price reductions.