St. Peter, Minnesota demographics

St. Peter, MN demographics: median age 35.6; 34.5% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · St. Peter city, Minnesota · Incorporated city · GEOID 2758036. The survey estimates a population of 12,185 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in St. Peter is 35.6 years, with a 90% margin of error of 1.9 years. There are 4,059 households (±194). 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	35.6 ±1.9	38.8 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 12,185
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Under 18	2,093 ±289	17.2% ±2.4 pp	22.9%	22.0%
18–34	3,920 ±369	32.2% ±3.0 pp	21.8%	22.8%
35–64	4,140 ±401	34.0% ±3.3 pp	38.0%	38.0%
65 and older	2,032 ±290	16.7% ±2.4 pp	17.3%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 12,185
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Male	6,230 ±265	51.1% ±2.2 pp	50.1%	49.5%
Female	5,955 ±267	48.9% ±2.2 pp	49.9%	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: 12,185
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
White alone	9,791 ±392	80.4% ±3.2 pp	77.1%	61.0%
Black or African American alone	894 ±354	7.3% ±2.9 pp	7.0%	12.2%
American Indian and Alaska Native alone	106 ±78 · low precision	0.9% ±0.6 pp · low precision	0.9%	0.9%
Asian alone	163 ±83 · low precision	1.3% ±0.7 pp · low precision	5.1%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±16 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	610 ±325 · low precision	5.0% ±2.7 pp · low precision	2.9%	7.1%
Two or more races	621 ±276	5.1% ±2.3 pp	7.0%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 12,185
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Not Hispanic or Latino	11,196 ±228	91.9% ±1.8 pp	93.6%	80.7%
Hispanic or Latino	989 ±223	8.1% ±1.8 pp	6.4%	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: 4,059
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Married-couple family	1,723 ±189	42.4% ±4.2 pp	48.9%	46.9%
Other family: male householder, no spouse present	90 ±69 · low precision	2.2% ±1.7 pp · low precision	4.5%	5.1%
Other family: female householder, no spouse present	444 ±143	10.9% ±3.5 pp	8.9%	12.2%
Nonfamily: householder living alone	1,678 ±216	41.3% ±4.9 pp	29.7%	28.7%
Nonfamily: householder not living alone	124 ±79 · low precision	3.1% ±1.9 pp · low precision	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 4,059
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Households with people under 18	1,088 ±146	26.8% ±3.4 pp	28.7%	29.5%
Households without people under 18	2,971 ±217	73.2% ±4.0 pp	71.3%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 4,059
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
One-person nonfamily households	1,678 ±216	41.3% ±4.9 pp	29.7%	28.7%
Two-person households	1,231 ±219	30.3% ±5.2 pp	35.6%	33.8%
Three-person households	351 ±121	8.6% ±3.0 pp	13.4%	15.3%
Four-person households	623 ±144	15.3% ±3.5 pp	12.3%	12.6%
Five-person households	67 ±49 · low precision	1.7% ±1.2 pp · low precision	5.6%	5.9%
Six-person households	24 ±28 · low precision	0.6% ±0.7 pp · low precision	2.0%	2.2%
Seven or more people	85 ±63 · low precision	2.1% ±1.6 pp · low precision	1.4%	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: 12,185
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Native	11,424 ±190	93.8% ±1.5 pp	91.3%	85.9%
Foreign born	761 ±185	6.2% ±1.5 pp	8.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 11,746
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
English only	10,294 ±332	87.6% ±2.7 pp	87.6%	77.7%
Spanish	680 ±240	5.8% ±2.0 pp	4.2%	13.6%
French, Haitian, or Cajun	0 ±16 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.7%
German or other West Germanic	141 ±93 · low precision	1.2% ±0.8 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	68 ±68 · low precision	0.6% ±0.6 pp · low precision	0.5%	0.7%
Other Indo-European	70 ±65 · low precision	0.6% ±0.6 pp · low precision	0.7%	2.0%
Korean	1 ±3 · low precision	0.0% ±0.0 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	18 ±25 · low precision	0.2% ±0.2 pp · low precision	0.4%	1.1%
Vietnamese	28 ±30 · low precision	0.2% ±0.3 pp · low precision	0.4%	0.5%
Tagalog, including Filipino	0 ±16 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.6%
Other Asian and Pacific Island	41 ±43 · low precision	0.3% ±0.4 pp · low precision	2.4%	1.1%
Arabic	0 ±16 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.5%
Other and unspecified	405 ±176	3.4% ±1.5 pp	2.6%	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: 7,336
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Less than high school graduate	674 ±207	9.2% ±2.8 pp	6.1%	10.4%
High school graduate or equivalency	2,067 ±278	28.2% ±3.6 pp	23.3%	26.0%
Some college, no degree	1,317 ±299	18.0% ±4.0 pp	19.5%	19.1%
Associate’s degree	749 ±167	10.2% ±2.2 pp	11.8%	8.8%
Bachelor’s degree	1,452 ±227	19.8% ±3.0 pp	25.6%	21.6%
Graduate or professional degree	1,077 ±254	14.7% ±3.4 pp	13.8%	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: 12,105
Category	Count ± MOE	Share ± MOE (pp)	Minnesota	U.S.
Same house	9,792 ±419	80.9% ±3.4 pp	87.8%	87.7%
Moved within same county	688 ±273	5.7% ±2.3 pp	5.7%	6.3%
Moved from a different county in the same state	1,232 ±252	10.2% ±2.1 pp	4.3%	3.1%
Moved from a different state	341 ±171 · low precision	2.8% ±1.4 pp · low precision	1.8%	2.3%
Moved from abroad	52 ±33 · low precision	0.4% ±0.3 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

4.3% of St. Peter residents (±1.5 percentage points) had no health insurance coverage when surveyed, compared with 4.7% in Minnesota and 8.4% nationally. 84.2% 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	St. Peter	Minnesota	U.S.	Compared with Minnesota
People without health insurance Civilian noninstitutionalized population	4.3% ±1.5 pp	4.7%	8.4%	Not statistically different
Households with a broadband subscription Households	84.2% ±3.3 pp	91.6%	91.0%	Lower
Veterans Civilian population age 18 and older	4.5% ±1.2 pp	5.9%	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 St. Peter . 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 St. Peter housing and cost context or return to the city profile.