Counties / Missouri / Franklin County

Franklin County, MO

FIPS 29071 · population 105,950 · part of St. Louis, MO

$273k
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
$273k
▲ 4.2% year over year
Zillow ZHVI · direct
Median asking rent
$1,156
▲ 3.8% year over year
Zillow ZORI · direct
Gross yield
5.1%
annual rent ÷ price, before costs
derived: rent × 12 ÷ price ✓
HUD 2-bed standard
$1,218
market rent is 0.95x the 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+52.8%not annualized · through 2025
0%ZILLOW ZHVI2026-06+4.2%FHFA HPI2025+6.3%
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$228k
Surveyed gross rent$893
Rent burden 30%+40.1%
Median year built1984
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
7.1%vacant
46,312estimated housing units
Occupied tenure23.5% renter
owner 76.5%renter 23.5%
Structure mix79.1% single-family
Single-family 79.1%20+ units 1.2%Mobile home 9.0%Other 10.8%
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 jobs39,764▲ 1.1% from the prior annual release
Covered establishments3,128annual average reporting locations
Average weekly wage$1,032▲ 3.8% from the prior annual release
Largest private supersectorManufacturing25.7% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS+1.1%WEEKLY WAGE+3.8%Manufacturing25.7%
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

Franklin County’s decision tension is a published yield against a softer visible listing setup and inland-flood exposure. For yield-focused buyers, Zillow’s 2026-06 county observation reports a $273,172 median home value, up 4.23%, alongside $1,156 monthly median asking rent and a 5.08% gross yield before costs. This is a diligence case rather than a broad affordability conclusion: investors should test whether a specific property preserves that spread after taxes, insurance, vacancy and repairs; buyers relying on resale strength should be cautious.

02Housing economics

The stated effective property-tax rate is 0.8%, a carrying-cost input that the published gross yield does not net out. HUD Fair Market Rent is a payment standard, not a market-rent estimate, so it cannot replace the measured asking rent or recalculate yield. FHFA’s repeat-transaction HPI rose 6.3% in its annual 2025 observation; it corroborates positive price direction but is neither a dollar value nor the same vintage or method as Zillow’s county observation.

03Demand & competition

Realtor.com’s MLS evidence shows 285 active listings, 23.91% more than a year earlier, and 15.34% with price reductions. These are visible asking-market supply and seller-concession signals, not closed-sale prices or standalone proof of buyer demand. Net migration was 253 tax-return households, while movers in had average AGI $9,795 above movers out, a constructive composition signal that does not establish housing demand. Non-occupant purchase mortgages were 11.94% of 1,323 total purchases, indicating some buyer competition but not its price effect. QCEW reports annual covered workplace employment and wage growth; Manufacturing is the largest disclosed private supersector, not the entire county economy.

04Risk & next checks

Inland flood is the dominant hazard; modeled expected annual climate loss equals 0.18% of building value, a county-level model input rather than a parcel loss estimate. Missing vacancy, operating expenses, insurance premiums, financing terms, property-level flood zone and mitigation data prevent a net-yield or cash-flow conclusion. Missing closed-sale comparables and property-type rent detail also prevent testing exit value and rent durability. Next checks are parcel flood history and insurance quotes, tax assessment, lease comparables and transaction comps.

Cities & communities

Where people live within Franklin 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
Washington city15.1KUnion city12.8KPacific city*7.5KSullivan city*6.3KSt. Clair city4.8KNew Haven city3.3KGray Summit CDP3KVilla Ridge CDP2.8K
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

17 Census places

Population
  1. 01
    Washington cityIncorporated place
    15,130
  2. 02
    Union cityIncorporated place
    12,781
  3. 03
    Pacific cityIncorporated place · spans 2 counties
    7,475
  4. 04
    Sullivan cityIncorporated place · spans 2 counties
    6,310
  5. 05
    St. Clair cityIncorporated place
    4,789
  6. 06
    New Haven cityIncorporated place
    3,302
  7. 07
    Gray Summit CDPCensus-designated place
    2,991
  8. 08
    Villa Ridge CDPCensus-designated place
    2,835
  9. 09
    Gerald cityIncorporated place
    1,368
  10. 10
    Lake St. Clair CDPCensus-designated place
    872
  11. 11
    Parkway villageIncorporated place
    624
  12. 12
    Oak Grove Village villageIncorporated place
    347
Show 5 more places
  1. 13
    Stanton CDPCensus-designated place
    175
  2. 14
    Berger cityIncorporated place
    169
  3. 15
    Miramiguoa Park villageIncorporated place
    155
  4. 16
    Leslie villageIncorporated place
    91
  5. 17
    Charmwood townIncorporated place
    0

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

0.184% of building value expected lost per year

Effective property tax0.80%

$1,813 median annual bill

02
DemandIRS SOI household flows
Net migration+253

2,434 in · 2,181 out

Arriving vs leaving income+$9,795

$66,656 arriving · $56,861 leaving

03
CompetitionHMDA financed purchases
Purchases by investors11.9%

158 of 1,323 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 listings285▲ 23.9% year over year
Median days on market55▲ 3.8% year over year
Listings price-reduced15.3%seller-concession signal
Median listing pricen/a▲ 10.0% year over year

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

Same metro

The other counties in St. Louis, MO

A metro is an average of these. Which side of a county line a property sits on can change the tax bill, the hazard profile and the tenant pool.

CountyPopulationPriceRentYieldHazard
Franklin County105,950$273k$1,1565.1%inland flooding
St. Louis County995,569$293k$1,4776.0%inland flooding
St. Charles County414,535$378k$1,7005.4%inland flooding
St. Louis city288,512$187k$1,3948.9%inland flooding
Madison County264,238$202k$1,1777.0%inland flooding
St. Clair County253,694$181k$1,3218.8%inland flooding
Jefferson County229,458$298k$1,4846.0%inland flooding
Lincoln County63,057$319k$1,7506.6%inland flooding
Macoupin County44,350$140kn/an/ainland flooding
Bear case

What can break the county thesis

  1. Parcel flood exposure or insurance costs exceed what the county climate model captures.
  2. Additional listing supply and concessions translate into weaker realized sale prices.
  3. Vacancy, repair, financing or operating costs erase the published pre-cost gross yield.
Underwriting questions

Before pricing a property

Is HUD Fair Market Rent used as the county’s market asking rent?

No. The record separately identifies median asking rent and HUD Fair Market Rent, which is a payment standard.

Can the supplied record establish net yield or property cash flow?

No. Vacancy, operating expenses, insurance premiums, financing terms and property-specific repair needs are not published.

Do the Realtor.com metrics establish closed-sale prices or prove buyer demand?

No. They are MLS listing-market measures of asking prices, visible supply, marketing time and seller price reductions.