Blackfoot, Idaho demographics

Blackfoot, ID demographics: median age 34.7; 24.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Blackfoot city, Idaho · Incorporated city · GEOID 1607840. The survey estimates a population of 12,782 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Blackfoot is 34.7 years, with a 90% margin of error of 2.4 years. There are 4,551 households (±272). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	34.7 ±2.4	37.3 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 12,782
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Under 18	3,480 ±438	27.2% ±3.4 pp	24.1%	22.0%
18–34	2,970 ±350	23.2% ±2.7 pp	22.8%	22.8%
35–64	4,225 ±490	33.1% ±3.8 pp	36.1%	38.0%
65 and older	2,107 ±315	16.5% ±2.5 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 12,782
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Male	5,972 ±279	46.7% ±2.2 pp	50.3%	49.5%
Female	6,810 ±278	53.3% ±2.2 pp	49.7%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 12,782
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
White alone	10,377 ±519	81.2% ±4.1 pp	81.7%	61.0%
Black or African American alone	34 ±31 · low precision	0.3% ±0.2 pp · low precision	0.8%	12.2%
American Indian and Alaska Native alone	339 ±176 · low precision	2.7% ±1.4 pp · low precision	1.2%	0.9%
Asian alone	19 ±23 · low precision	0.1% ±0.2 pp · low precision	1.4%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±19 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.2%
Some other race alone	1,048 ±332	8.2% ±2.6 pp	5.1%	7.1%
Two or more races	965 ±321	7.5% ±2.5 pp	9.7%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 12,782
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Not Hispanic or Latino	10,405 ±423	81.4% ±3.3 pp	86.4%	80.7%
Hispanic or Latino	2,377 ±426	18.6% ±3.3 pp	13.6%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 4,551
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Married-couple family	2,302 ±227	50.6% ±4.0 pp	55.1%	46.9%
Other family: male householder, no spouse present	179 ±100 · low precision	3.9% ±2.2 pp · low precision	4.7%	5.1%
Other family: female householder, no spouse present	639 ±168	14.0% ±3.6 pp	8.7%	12.2%
Nonfamily: householder living alone	1,219 ±224	26.8% ±4.7 pp	24.4%	28.7%
Nonfamily: householder not living alone	212 ±96	4.7% ±2.1 pp	7.1%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 4,551
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Households with people under 18	1,574 ±215	34.6% ±4.2 pp	31.9%	29.5%
Households without people under 18	2,977 ±366	65.4% ±7.0 pp	68.1%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 4,551
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
One-person nonfamily households	1,219 ±224	26.8% ±4.7 pp	24.4%	28.7%
Two-person households	1,578 ±263	34.7% ±5.4 pp	37.0%	33.8%
Three-person households	641 ±172	14.1% ±3.7 pp	14.5%	15.3%
Four-person households	429 ±150	9.4% ±3.3 pp	12.2%	12.6%
Five-person households	390 ±150	8.6% ±3.3 pp	6.6%	5.9%
Six-person households	174 ±82	3.8% ±1.8 pp	3.3%	2.2%
Seven or more people	120 ±73 · low precision	2.6% ±1.6 pp · low precision	2.1%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 12,782
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Native	11,988 ±237	93.8% ±1.8 pp	94.1%	85.9%
Foreign born	794 ±231	6.2% ±1.8 pp	5.9%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 11,721
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
English only	10,336 ±324	88.2% ±2.1 pp	89.0%	77.7%
Spanish	1,260 ±281	10.7% ±2.4 pp	8.1%	13.6%
French, Haitian, or Cajun	0 ±19 · low precision	0.0% ±0.2 pp · low precision	0.2%	0.7%
German or other West Germanic	26 ±38 · low precision	0.2% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	12 ±19 · low precision	0.1% ±0.2 pp · low precision	0.5%	0.7%
Other Indo-European	61 ±66 · low precision	0.5% ±0.6 pp · low precision	0.5%	2.0%
Korean	0 ±19 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	7 ±13 · low precision	0.1% ±0.1 pp · low precision	0.2%	1.1%
Vietnamese	0 ±19 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	13 ±19 · low precision	0.1% ±0.2 pp · low precision	0.1%	0.6%
Other Asian and Pacific Island	6 ±9 · low precision	0.1% ±0.1 pp · low precision	0.4%	1.1%
Arabic	0 ±19 · low precision	0.0% ±0.2 pp · low precision	0.1%	0.5%
Other and unspecified	0 ±19 · low precision	0.0% ±0.2 pp · low precision	0.3%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 8,146
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Less than high school graduate	860 ±259	10.6% ±3.1 pp	8.1%	10.4%
High school graduate or equivalency	2,859 ±362	35.1% ±4.2 pp	26.1%	26.0%
Some college, no degree	1,762 ±326	21.6% ±3.9 pp	24.2%	19.1%
Associate’s degree	651 ±180	8.0% ±2.2 pp	9.7%	8.8%
Bachelor’s degree	1,350 ±257	16.6% ±3.1 pp	21.3%	21.6%
Graduate or professional degree	664 ±164	8.2% ±2.0 pp	10.5%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 12,585
Category	Count ± MOE	Share ± MOE (pp)	Idaho	U.S.
Same house	10,897 ±429	86.6% ±3.3 pp	84.9%	87.7%
Moved within same county	849 ±292	6.7% ±2.3 pp	7.0%	6.3%
Moved from a different county in the same state	659 ±294	5.2% ±2.3 pp	3.1%	3.1%
Moved from a different state	89 ±67 · low precision	0.7% ±0.5 pp · low precision	4.6%	2.3%
Moved from abroad	91 ±107 · low precision	0.7% ±0.9 pp · low precision	0.4%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

5.2% of Blackfoot residents (±1.8 percentage points) had no health insurance coverage when surveyed, compared with 9.1% in Idaho and 8.4% nationally. 88.2% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Blackfoot	Idaho	U.S.	Compared with Idaho
People without health insurance Civilian noninstitutionalized population	5.2% ±1.8 pp	9.1%	8.4%	Lower
Households with a broadband subscription Households	88.2% ±2.7 pp	91.9%	91.0%	Lower
Veterans Civilian population age 18 and older	5.7% ±1.8 pp	8.0%	6.2%	Lower

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Blackfoot . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Blackfoot housing and cost context or return to the city profile.