Counties / Idaho / Gem County

Gem County, ID

FIPS 16045 · population 20,614 · part of Boise City, ID

$488k
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
$488k
▲ 2.2% year over year
Zillow ZHVI · direct
Median asking rent
$1,490
n/a year over year
Zillow ZORI · direct
Gross yield
3.7%
annual rent ÷ price, before costs
derived: rent × 12 ÷ price ✓
HUD 2-bed standard
$1,190
market rent is 1.25x 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+52.7%not annualized · through 2025
0%ZILLOW ZHVI2026-06+2.2%FHFA HPI2025+2.8%
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$429k
Surveyed gross rent$1,038
Rent burden 30%+40.6%
Median year built1983
Housing composition

Who occupies the stock—and what it is

ACS 2024 5-year
3.9%vacant
7,954estimated housing units
Occupied tenure24.0% renter
owner 76.0%renter 24.0%
Structure mix81.6% single-family
Single-family 81.6%20+ units 1.6%Mobile home 12.0%Other 4.9%
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 jobs4,576▲ 1.2% from the prior annual release
Covered establishments715annual average reporting locations
Average weekly wage$888▲ 2.7% from the prior annual release
Largest private supersectorEducation and health services24.9% of disclosed private covered jobs
Local labor base

Jobs, pay and private-sector concentration

2025
0%COVERED JOBS+1.2%WEEKLY WAGE+2.7%Education and health services24.9%
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

Gem County presents a current-income tension: Zillow’s county observation labeled 2026-06 places the median home value at $488,026, 2.17% above a year earlier, against measured median asking rent of $1,490 per month and a stated 3.66% gross yield before costs. That starting yield gives little demonstrated cushion for operating and financing burdens. Income-focused buyers should be cautious and investigate parcel-level expenses; purchasers whose case depends on price gains need separate exit evidence.

02Housing economics

The annual 2025 FHFA repeat-transaction HPI rose 2.83% year over year. It and Zillow’s upward reading are directionally consistent, but they have different labeled observations and methods: FHFA is an index, not a home value, so their growth rates cannot be averaged. Market asking rent is distinct from HUD’s two-bedroom FMR, a payment standard rather than an asking-rent estimate. Against the starting yield, the effective property-tax rate of 0.33% is one identified carrying cost; insurance and maintenance are not published.

03Demand & competition

At the same label, Realtor.com’s MLS listing market had declining active listings while 11.93% of listings carried price reductions. Those are visible-supply and seller-concession evidence, not closed-sale pricing or buyer demand on their own. QCEW’s 2025 annual covered workplace employment rose 1.24%; it is neither resident employment nor unemployment. Tax-return migration was positive by 138 households, and inbound movers had higher average income than outbound movers, which merits tenant-level verification. Investors made 11 of 256 purchase mortgages, or 4.3%, a limited measure that excludes all-cash competition.

04Risk & next checks

Wildfire is the dominant hazard, and modeled climate loss equals 0.33% of building value annually; it is expected modeled loss, not an insurance quote. Vacancy, lease concessions, insurance quotes, debt terms, property condition, and closed-sale comparables are not published in the record. Their absence prevents a net-yield calculation, a tenant-demand test, and reliable resale underwriting. Next checks are address-level hazard and insurance exposure, operating statements, lease roll, and recent closed comparables.

Cities & communities

Where people live within Gem 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
Emmett city8.3KLetha CDP109
Bars use total place population, not a county-share estimate. An asterisk marks a place that crosses a county line.
Official directory

2 Census places

Population
  1. 01
    Emmett cityIncorporated place
    8,275
  2. 02
    Letha CDPCensus-designated place
    109

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 hazardwildfire

0.328% of building value expected lost per year

Effective property tax0.33%

$1,418 median annual bill

02
DemandIRS SOI household flows
Net migration+138

733 in · 595 out

Arriving vs leaving income+$17,055

$72,734 arriving · $55,679 leaving

03
CompetitionHMDA financed purchases
Purchases by investors4.3%

11 of 256 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 listings114▼ 4.6% year over year
Median days on market52▼ 21.8% year over year
Listings price-reduced11.9%seller-concession signal
Median listing pricen/a▲ 14.0% 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 Boise City, 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
Gem County20,614$488k$1,4903.7%wildfire
Ada County518,935$531k$1,9264.3%inland flooding
Canyon County250,790$421k$1,6734.8%inland flooding
Owyhee County12,503$447kn/an/ainland flooding
Boise County8,273$490kn/an/awildfire
Bear case

What can break the county thesis

  1. Unpublished insurance and operating costs could erase the stated gross-yield cushion.
  2. County migration and covered workplace employment may not translate into demand for a specific rental.
  3. Wildfire exposure and modeled loss could create address-specific costs or liquidity constraints.
Underwriting questions

Before pricing a property

How does measured market rent compare with HUD Fair Market Rent?

Median asking rent is $1,490 per month, while HUD’s two-bedroom FMR is $1,190 per month; FMR is a payment standard rather than a market-rent estimate.

What do the available price measures show?

Zillow’s 2026-06 county median home value is $488,026 and was up 2.17% year over year; the FHFA 2025 repeat-transaction HPI rose 2.83% year over year.

How much reported purchase-mortgage activity involved investors?

Investors made 11 of 256 purchase mortgages, representing 4.3% of reported purchases.