St. Francis: Demographics & People

St. Francis is home to 9,004 people, in 5,197 households. Population shrank 3.4% from 9,318 (2022) to 9,004 (2024). Median age 54.9 years. (19.4y older than Milwaukee County; 16.6y older than Wisconsin). Children under 18 are 10% of the population. Population is 78% White (non-Hispanic) and 12% Hispanic or Latino. The community is somewhat diverse (Simpson index 0.33). 38% of households are family-led. County is losing 17,549 residents per year (2022-2023). County health: 39% adult obesity, 17% smoke.

Population & Trend

Population shrank 3.4% from 9,318 (2022) to 9,004 (2024). Estimated 2026 population: ~8,703 (extrapolated at -1.7%/yr trend). Census Bureau Vintage estimate: 8,311.

Census data vintage2024
Population939,489 people
Annual growth rate · Population change-3.4%
Annual growth rate · Population (2022)9,318
Annual growth rate · Population (2024)9,004
Annual growth rate · Trend categorydeclining
Population9,004 people (vs Wisconsin 25,785) population: 4 observations from 2026-04-17 to 2026-04-28
Population Estimate8,311

Sources: Census ACS 5-Year 2023, Table B01003  ·  Refreshed 2026-04-12

Age Distribution

Median age 54.9y is 16.0 years older than the U.S. median (38.9y). Children under 18 make up 10% — below the U.S. share of ~22%.

Age Summary · Median age54.9 years (vs Wisconsin 38.3y)
Age Summary · Children Pct10.2%
Age Summary · Characterretirement community
Age Summary · Total Pop9,004
Age Summary · Under 18920
Age Summary · 18 To 341,363.0×
Age Summary · 35 To 644,414.0×
Age Summary · 65 Plus2,307
Population under 18920
Median age54.9 years (vs Wisconsin 38.3y)

Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023  ·  Refreshed 2026-04-29

Race, Ethnicity & Diversity

Of 9,004 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.33 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.

White residents7,539
Black residents600
Asian residents113
Hispanic or Latino residents1,059
Diversity Index · Diversity index (Simpson)32.7%
Diversity Index · Diversity labelsomewhat diverse
Diversity Index · Groups counted4
Diversity Index · Largest group share81.0%
Asian population1.4% (vs Wisconsin 3.1%)
Black population6.6% (vs Wisconsin 2.7%)
Hispanic or Latino population11.6% (vs Wisconsin 6.6%)
White (non-Hispanic) population77.7% (vs Wisconsin 81.6%)

Sources: Census ACS 5-Year 2023  ·  Refreshed 2026-04-12

Ancestry

Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.

Top (8)

(unnamed)
German
(unnamed)
Polish
(unnamed)
Hispanic Total
(unnamed)
Puerto Rican
(unnamed)
Irish
(unnamed)
Black
(unnamed)
Italian
(unnamed)
English

Citizenship & Origin

Where residents were born and their citizenship status (Census ACS). 0.9% are foreign-born — below the U.S. average of 13.9%. 4% have naturalized to U.S. citizenship.

Residents born in this state6,755
Residents born in another state1,784
Share born in this state75.0%
Share born in another state25.0%
Native-born U.S. citizens19.8%
Foreign-born residents0.9%
Naturalized citizens4.3%
Total foreign-born residents457
From Europe120
From Africa205

Households & Family Composition

5,197 households. Averaging 1.8 people each — smaller than the U.S. average of 2.5. 38% are family households — below the U.S. share of ~65%. Of 2,116 families, 17% are married couples with children.

Children under 181,000
Total families2,116
Married couples with children361
Single-parent households28
Average household size1.81
Women who gave birth (past year)14.0%
Grandparents living with grandchildren14,514
Grandparents responsible for grandchildren5,820
Family households1,995 households (vs Wisconsin 7,092)
Households that are families38.4% (vs Wisconsin 57.2%)
Total households5,197 households (vs Wisconsin 10,843) total_households: 2 observations from 2026-04-23 to 2026-04-23

Sources: Census ACS 5-Year 2023  ·  Refreshed 2026-04-12

Residential Stability & Migration

How long residents have lived here and where they came from. 20.3% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 17,549 residents per year on net (IRS migration data).

Moved within the county (past year)20.3%
Migration · People moving in (annual)770,822
Migration · People moving out (annual)788,371
Migration · Net migration (in − out)-17,549
Migration · Year2022-2023

Sources: IRS SOI Migration 2021-2022  ·  Refreshed 2026-04-12

Disability

Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.

Residents with a disability760
Disability rate8.2%

Group Quarters

Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 235 residents live in group quarters (2.6% of population).

Living in group quarters235

Other

Congressional District · District1
Congressional District · FormattedWI-01
Congressional District · Congress118th
Cdc Birth Rate · Fips55079
Cdc Birth Rate · State Fips55
Cdc Birth Rate · County Fips079
Cdc Birth Rate · CountyMilwaukee
Cdc Birth Rate · Birth Rate24.7%
Cdc Birth Rate · Lower Ci23.70
Cdc Birth Rate · Upper Ci25.70
Cdc Mortality · Fips55079
Cdc Mortality · CountyMilwaukee County
Cdc Mortality · Urban RuralLarge central metro
Cdc Mortality · Total Deaths 2020 202337,080
Cdc Vaccination · Fips55079
Cdc Vaccination · CountyMilwaukee County
Cdc Vaccination · Dose1 Pop Pct76.2%
Cdc Vaccination · Series Complete Pct67.9%
Cdc Vaccination · Booster Pct56.7%
Cdc Vaccination · Population 2019945,726
Cdc Vaccination · Metro StatusMetro
Family Score · Score10
Family Score · Schools20
Family Score · Children Pct10.2%
Family Score · Ratingexcellent
Town Summary · Key Factspopulation 9,004, declining, retirement community, middle-class, white collar
Town Summary · Population9,004 people (vs Wisconsin 25,785)
Town Summary · CountyMilwaukee County

Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade