Counties / South Dakota / Walworth County

Walworth County, SD

FIPS 46129 · population 5,271 · outside every metro area

$141k
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
$141k
▲ 4.1% year over year
Zillow ZHVI · direct
ACS median gross rent
$926
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
$980
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.

The annual signals disagree
FHFA five-year cumulative+13.9%not annualized · through 2025
0%ZILLOW ZHVI2026-06+4.1%FHFA HPI2025−3.2%
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$137k
Surveyed gross rent$926
Rent burden 30%+40.8%
Median year built1969
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
17.6%vacant
2,932estimated housing units
Occupied tenure23.8% renter
owner 76.2%renter 23.8%
Structure mix78.7% single-family
Single-family 78.7%20+ units 3.1%Mobile home 10.5%Other 7.7%
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 jobs2,065▲ 1.6% from the prior annual release
Covered establishments262annual average reporting locations
Average weekly wage$943▲ 4.9% from the prior annual release
Largest private supersectorTrade, transportation, and utilities36.3% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS+1.6%WEEKLY WAGE+4.9%Trade, transportation, and utilities36.3%
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

Walworth County presents a conflicted entry screen: Zillow’s county median home value was $141,257 in 2026-06, up 4.09% year over year, while the FHFA repeat-transaction HPI fell 3.20% in 2025. That discrepancy makes the county better suited to investors who can verify specific assets and sale comparables, not those relying on a single appreciation narrative. FHFA’s index is not a home value, and the differently dated, differently constructed measures cannot be averaged into one growth rate. Caution is warranted until price evidence is reconciled at property level.

02Housing economics

Cash-flow underwriting is incomplete. No county market asking rent is published, so gross yield cannot be computed. HUD’s two-bedroom FMR is $980 per month, but it is a payment standard rather than market rent and cannot substitute for one. The 1.31% effective property-tax rate establishes a carrying-cost consideration, although it should not be applied mechanically to Zillow’s median value. Obtain achievable rent, lease terms, utilities, insurance and actual tax bills before setting income or expense assumptions.

03Demand & competition

Demand evidence is mixed. The 2025 QCEW count was 2,065 covered jobs at county workplaces and a $943 average weekly wage; these are not resident employment or an unemployment rate. Trade, transportation, and utilities was the largest disclosed private supersector, not the whole economy. Tax-return migration was net negative by six households, although entering movers’ average AGI exceeded departing movers’ by $12,837. One of 35 purchase mortgages, or 2.86%, went to non-occupants, a measure that does not establish competition across all transactions.

04Risk & next checks

Risk limits remain material. Inland flood is the dominant hazard, and modeled climate loss equals 0.27% of building value per year; this is neither a site-specific insurance quote nor a dollar loss. The record has seven of eight evidence groups, but market rent and Realtor.com MLS measures of asking prices, active listings, days on market and price reductions are not published in the record. That blocks gross-yield calculation and assessment of visible supply, marketing time and seller concessions. Next checks are parcel flood exposure, elevation, coverage terms, verified rents and expenses, closed comparables, and current MLS detail.

Cities & communities

Where people live within Walworth 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
Mobridge city2.9KSelby city702Akaska town104Glenham town95Java town78Lowry town1
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

6 Census places

Population
  1. 01
    Mobridge cityIncorporated place
    2,932
  2. 02
    Selby cityIncorporated place
    702
  3. 03
    Akaska townIncorporated place
    104
  4. 04
    Glenham townIncorporated place
    95
  5. 05
    Java townIncorporated place
    78
  6. 06
    Lowry townIncorporated place
    1

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

0.266% of building value expected lost per year

Effective property tax1.31%

$1,792 median annual bill

02
DemandIRS SOI household flows
Net migration-6

109 in · 115 out

Arriving vs leaving income+$12,837

$60,037 arriving · $47,200 leaving

03
CompetitionHMDA financed purchases
Purchases by investors2.9%

1 of 35 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. No published market rent prevents validation of income assumptions and gross yield.
  2. Flood exposure, elevation, and insurance terms may vary materially by parcel.
  3. Missing MLS supply and concession data may conceal listing pressure or seller flexibility.
Underwriting questions

Before pricing a property

Can gross yield be calculated from this record?

No. County market asking rent is not published, and HUD FMR cannot be used as market rent.

What is the reported dominant hazard?

Inland flood is the dominant hazard; the record also provides a modeled climate-loss ratio rather than a parcel-specific loss estimate.

Does the investor-share measure represent all home purchases?

No. It measures purchase mortgages going to non-occupants, not all county transactions.