Counties / Illinois / Washington County

Washington County, IL

FIPS 17189 · population 13,627 · outside every metro area

$168k
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
$168k
▲ 9.9% year over year
Zillow ZHVI · direct
ACS median gross rent
$818
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
$916
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+42.6%not annualized · through 2025
0%ZILLOW ZHVI2026-06+9.9%FHFA HPI2025+8.6%
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$156k
Surveyed gross rent$818
Rent burden 30%+28.7%
Median year built1972
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
9.7%vacant
6,415estimated housing units
Occupied tenure15.9% renter
owner 84.1%renter 15.9%
Structure mix87.9% single-family
Single-family 87.9%20+ units 0.4%Mobile home 8.9%Other 2.9%
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 jobs6,219▲ 1.5% from the prior annual release
Covered establishments387annual average reporting locations
Average weekly wage$1,188▲ 2.2% from the prior annual release
Largest private supersectorTrade, transportation, and utilities41.5% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS+1.5%WEEKLY WAGE+2.2%Trade, transportation, and utilities41.5%
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 a confirmation-versus-carrying-cost question: investigators seeking a modest price point with corroborated appreciation can examine it, while income-focused underwriters should remain cautious until rent evidence is obtained. Zillow reports a $167,675 median home value, up 9.89% year over year. Separately, FHFA’s repeat-transaction HPI rose 8.59% in its annual observation. These movements point in the same direction, but the HPI is not a home value, and the differently dated and constructed series cannot be combined into one appreciation measure.

02Housing economics

Price economics remain incomplete. The effective property-tax rate is 1.87%, with a $2,908 median annual tax, a carrying-cost check against value. No county market asking rent is published, so gross yield cannot be computed. HUD’s $916 two-bedroom FMR is a payment standard rather than market rent and cannot fill that gap. Missing insurance, maintenance, financing, and property-level tax assessment evidence also prevents a full expense or cash-flow conclusion.

03Demand & competition

Workplace and mover data offer modest support but not a demand verdict. QCEW records 6,219 annual average covered jobs at county workplaces; it is not resident employment or unemployment. Trade, transportation, and utilities is the largest disclosed private supersector, not the whole economy; concentration merits tenant-base review. Tax-return migration shows 339 inbound and 313 outbound households, for net migration of 26; inbound movers’ $58,077 average income trailed outbound movers’ $58,399. The net inflow is small and the income gap argues against treating migration as unqualified purchasing-power support. The reported investor share was 6.06% across 99 purchases, a limited observed non-owner measure rather than a count of all buyers.

04Risk & next checks

Risk limits are material. Inland flood is the named dominant hazard, and modeled annual climate loss equals 0.21% of building value; it is modeled loss, not an insurance quote. No Realtor.com MLS listing price, active-listing, days-on-market, price-reduction, or pending evidence is published, preventing a current visible-supply and seller-concession read. Before a property-level decision, verify market rent, flood zone and insurance terms, taxes from the assessment record, condition, and actual comparable sales; county aggregates cannot establish an individual asset’s income, resale liquidity, or hazard cost.

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
Centralia city*11.9KNashville city2.9KOkawville village1.3KWamac city*804Irvington village774Hoyleton village523Ashley city412Addieville village294
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

14 Census places

Population
  1. 01
    Centralia cityIncorporated place · spans 4 counties
    11,856
  2. 02
    Nashville cityIncorporated place
    2,940
  3. 03
    Okawville villageIncorporated place
    1,299
  4. 04
    Wamac cityIncorporated place · spans 3 counties
    804
  5. 05
    Irvington villageIncorporated place
    774
  6. 06
    Hoyleton villageIncorporated place
    523
  7. 07
    Ashley cityIncorporated place
    412
  8. 08
    Addieville villageIncorporated place
    294
  9. 09
    Oakdale villageIncorporated place
    264
  10. 10
    New Minden villageIncorporated place
    218
  11. 11
    Richview villageIncorporated place
    208
  12. 12
    Venedy villageIncorporated place
    161
Show 2 more places
  1. 13
    Radom villageIncorporated place
    146
  2. 14
    Du Bois villageIncorporated place
    122

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

0.209% of building value expected lost per year

Effective property tax1.87%

$2,908 median annual bill

02
DemandIRS SOI household flows
Net migration+26

339 in · 313 out

Arriving vs leaving income−$322

$58,077 arriving · $58,399 leaving

03
CompetitionHMDA financed purchases
Purchases by investors6.1%

6 of 99 mortgages

investorother financed
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. Unpublished market rent and operating costs could make income economics weaker than the price trend suggests.
  2. Inland-flood exposure and insurance terms could raise carrying costs beyond county-level modeled loss.
  3. Unreported MLS supply and transaction evidence could make resale liquidity and buyer competition different from county indicators.
Underwriting questions

Before pricing a property

Can gross yield be calculated from this record?

No. County market rent is not published, and HUD FMR is a payment standard rather than market asking rent.

What do the price indicators show?

Both Zillow’s county value change and FHFA’s annual repeat-transaction HPI are positive, but they are distinct measures and observations.

What is the principal hazard evidence?

Inland flood is the named dominant hazard, while the climate-loss figure is a modeled annual building-value loss rather than an insurance quote.