Idaho Falls, ID · Idaho

Jefferson County

ZIP 83431

32,234 residents284 permits TTM$82,952 median HHI7 ZIP codesUpdated April 16, 2026
Investor first look

Median home value

$335,000

ACS 5-Year

Cap rate proxy

3.9%

FMR × 0.65 ÷ Home Value

Rent-to-income

15.9%

HUD FMR ÷ ACS HHI

Net migration

+2.08%

IRS SOI

Permits (TTM)

284

Census BPS

Climate risk

40.1

FEMA NRI (0–100)

ZIP 83431

Median home value

Gross yield

Buy Box score

Section 8 gap

Affordability

P/I: 4.7R/I:

Section 8 detail

SAFMR: Rent: Gap:
ZIP code breakdown7 ZIP codes
ZIPMedian home valueRent (FMR 2BR)Gross yieldBuy Box scoreSection 8 gap
834440.4
834340.4
834420.2
83425
83431
83435
83450

Sort by any column. Click a ZIP for detail.

Demographics

Owner-occupied

82.4%

Census ACS

Vacancy rate

5.7%

Census ACS

Bachelor's degree +

27.2%

Census ACS

Rent burdened

23.6%

Census ACS (>30% income)

Median age

32.3

Census ACS

Data sources
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026