Counties / Idaho / Jefferson County

Jefferson County, ID

FIPS 16051 · population 33,154 · part of Idaho Falls, ID

$477k
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
$477k
▲ 2.5% year over year
Zillow ZHVI · direct
Median asking rent
$1,372
n/a year over year
Zillow ZORI · direct
Gross yield
3.5%
annual rent ÷ price, before costs
derived: rent × 12 ÷ price ✓
HUD 2-bed standard
$1,305
market rent is 1.05x 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+55.0%not annualized · through 2025
0%ZILLOW ZHVI2026-06+2.5%FHFA HPI2025+6.4%
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$408k
Surveyed gross rent$1,138
Rent burden 30%+28.3%
Median year built1994
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
5.4%vacant
10,779estimated housing units
Occupied tenure17.0% renter
owner 83.0%renter 17.0%
Structure mix87.0% single-family
Single-family 87.0%20+ units 0.3%Mobile home 7.2%Other 5.5%
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 jobs8,325▼ 13.8% from the prior annual release
Covered establishments1,231annual average reporting locations
Average weekly wage$854▼ 4.3% from the prior annual release
Largest private supersectorTrade, transportation, and utilities20.5% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS−13.8%WEEKLY WAGE−4.3%Trade, transportation, and utilities20.5%
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

Jefferson County’s decision tension is a modest stated gross yield against value appreciation and a limited visible listing pool. Investors requiring durable current income should be cautious; buyers able to verify property-level costs and rents should investigate. Zillow county observations labeled 2026-06 show a $476,605 median home value and $1,372 median monthly asking rent, with the supplied 3.45% gross yield before costs. This is measured asking-rent evidence, not proof of achieved rent or net return.

02Housing economics

The 0.45% effective property-tax rate is a direct carrying cost against that yield. HUD two-bedroom FMR is a payment standard, not an estimate of county asking rent; it cannot replace Zillow rent or create a yield calculation. Zillow median value rose 2.49% in its county measure. FHFA’s separate 2025 repeat-transaction HPI rose 6.38%. Both indicate an upward direction, but their different vintages and methods prohibit averaging them into one appreciation rate.

03Demand & competition

QCEW’s 2025 annual measure reports covered employment at county workplaces, not resident employment; it declined 13.80%. Trade, transportation, and utilities is its largest disclosed private supersector, not the whole economy. Realtor.com’s 2026-06 MLS evidence shows 90 active listings, down 25.31%, and 9.19% of listings price-reduced. These are visible-supply and seller-concession measures—not closed-sale prices or standalone proof of buyer demand.

04Risk & next checks

Tax-return migration was net 114 households, while average AGI of moving-in households exceeded that of moving-out households by $19,283. That pairing indicates positive net flow with higher reported inbound income, but does not measure tenant demand. Of 350 total purchases, investors represented 2.57%, limiting evidence that non-occupant buyers dominate competition. Inland flood is the dominant hazard, and modeled expected annual climate loss equals 0.14% of building value; this is modeled risk, not a parcel finding. Vacancy, operating expenses, insurance, debt terms, closed-sale comparables, and parcel flood data are not published, preventing a net-cash-flow or property-specific resilience conclusion.

Cities & communities

Where people live within Jefferson 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
Rigby city5.4KRirie city*1.1KMenan city876Roberts city609Mud Lake city491Lewisville city453Hamer city59
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

7 Census places

Population
  1. 01
    Rigby cityIncorporated place
    5,404
  2. 02
    Ririe cityIncorporated place · spans 2 counties
    1,079
  3. 03
    Menan cityIncorporated place
    876
  4. 04
    Roberts cityIncorporated place
    609
  5. 05
    Mud Lake cityIncorporated place
    491
  6. 06
    Lewisville cityIncorporated place
    453
  7. 07
    Hamer cityIncorporated place
    59

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

0.145% of building value expected lost per year

Effective property tax0.45%

$1,824 median annual bill

02
DemandIRS SOI household flows
Net migration+114

1,030 in · 916 out

Arriving vs leaving income+$19,283

$71,145 arriving · $51,862 leaving

03
CompetitionHMDA financed purchases
Purchases by investors2.6%

9 of 350 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 listings90▼ 25.3% year over year
Median days on market48▼ 4.5% year over year
Listings price-reduced9.2%seller-concession signal
Median listing pricen/a▲ 7.8% 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 Idaho Falls, ID

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
Jefferson County33,154$477k$1,3723.5%inland flooding
Bonneville County129,523$405k$1,4154.2%inland flooding
Butte County2,684n/an/an/ainland flooding
Bear case

What can break the county thesis

  1. Countywide asking-rent and gross-yield measures may not match a subject property’s rent, expenses, or occupancy.
  2. Covered workplace employment contraction may coincide with weaker local tenant or buyer depth, while county data cannot identify submarket exposure.
  3. Flood exposure and modeled climate loss may vary materially by parcel, insurance availability, and mitigation.
Underwriting questions

Before pricing a property

Is the published rent a HUD payment standard?

No. The record separately identifies median asking market rent and HUD Fair Market Rent.

Does FHFA HPI report a county home value?

No. It is a repeat-transaction appreciation index rather than a dollar home-value estimate.

Is QCEW employment a measure of resident employment?

No. It measures annual covered jobs at workplaces located in the county.