What is the population of Idaho Falls city?

Idaho Falls city has 66,672 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #4 of 236 in Idaho.

What is the median household income in Idaho Falls city?

Median household income in Idaho Falls city is $69,630 a year, 11.3% below the national figure of $78,538.

How much does it cost to rent or buy in Idaho Falls city?

Median gross rent is $992 a month and the median home value is $298,600, so rent absorbs about 17.1% of median household income.

Is Idaho Falls city affordable compared with the rest of the US?

Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Idaho Falls city is less affordable to buy in than the typical US market, and rent takes 17.1% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Idaho · Census place 39700

Idaho Falls, ID population, income and ZIP codes

Quick answer

The population of the city of Idaho Falls, Idaho (Idaho Falls, ID — Census place “Idaho Falls city”) is 66,672 residents, ranking #4 of 236 places in Idaho. Median household income is $69,630, the median home is worth $298,600 and median gross rent runs $992 a month. Looking for the Idaho Falls Idaho ZIP code list? 2 ZIP codes serve Idaho Falls, ID: 83402, 83404.

Population: 66,672Idaho Falls city residents
Median household income: $69,630Past 12 months, inflation adjusted
Median home value: $298,600Owner-occupied units
Median gross rent: $992Rent plus utilities, monthly
Median age: 33.5 yrsAll residents
Homeownership rate: 64.1%Owner-occupied households

Idaho Falls ZIP codes (Idaho)

Census ZCTAs whose delivery area overlaps Idaho Falls.

The Idaho Falls ID ZIP code list below covers 2 ZIP codes. Open any one for its population, income, housing and rent profile.

What the numbers mean in Idaho Falls city

Housing cost measured against local earnings.

A household earning the Idaho Falls city median would spend about 17.1% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 12% of residents and 64.1% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Idaho Falls city, ID in context

How this area compares with national benchmarks.

Idaho Falls city is a small city in Idaho, with 66,672 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #4 of 236 ranked by population — larger than 98% of them. The median age here is 33.5 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.

Households in Idaho Falls city earn a median of $69,630 a year, 11.3% below the national figure of $78,538 and 9% above the $63,864 median for the 100 Idaho cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 12% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Idaho Falls city is valued at $298,600, 1.6% below the national figure and 10% above the $271,500 peer median, while median gross rent runs $992 a month, 29.4% below the national figure, or roughly $11,904 across a full year. A household on the local median income would put about 17.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 64.1% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Idaho.

More Idaho coverage.

Frequently asked questions

Common questions about this area.

What is the population of Idaho Falls city?: Idaho Falls city has 66,672 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #4 of 236 in Idaho.
What is the median household income in Idaho Falls city?: Median household income in Idaho Falls city is $69,630 a year, 11.3% below the national figure of $78,538.
How much does it cost to rent or buy in Idaho Falls city?: Median gross rent is $992 a month and the median home value is $298,600, so rent absorbs about 17.1% of median household income.
Is Idaho Falls city affordable compared with the rest of the US?: Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Idaho Falls city is less affordable to buy in than the typical US market, and rent takes 17.1% of median income against the 30% cost-burden line.
How current is this Idaho Falls city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.