Mukwonago: Demographics & People
About 8,415 people live in Mukwonago, in 3,331 households. Population grew 0.1% from 8,411 (2022) to 8,415 (2024). Median age 39.4 years. (4.1y younger than Waukesha County; 1.1y older than Wisconsin). Children under 18 are 24% of the population. Population is 84% White (non-Hispanic) and 8% Hispanic or Latino. The community is somewhat diverse (Simpson index 0.20). 64% of households are family-led. County is gaining 168 residents per year (2022-2023). County health: 33% adult obesity, 15% smoke.
- 2.5 people per household (vs Wisconsin avg 2.4).
- 36% non-family households (singles, roommates) (vs Wisconsin 43%).
- 67 dependents per 100 working-age (youth + seniors / 18-64) (vs Wisconsin 66).
Population & Trend
Population grew 0.1% from 8,411 (2022) to 8,415 (2024) — close to the U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~8,419 (extrapolated at 0.0%/yr trend).
| Census data vintage | 2024 |
|---|---|
| Population | 106,478 people |
| Annual growth rate · Population change | 0.1% |
| Annual growth rate · Population (2022) | 8,411 |
| Annual growth rate · Population (2024) | 8,415 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 8,415 people (vs Wisconsin 25,785) |
| Population Estimate | 8,425 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.4y is 0.5 years older than the U.S. median (38.9y). Children under 18 make up 24% — above the U.S. share of ~22%.
| Age Summary · Median age | 39.4 years (vs Wisconsin 38.3y) |
|---|---|
| Age Summary · Children Pct | 23.5% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 8,415 |
| Age Summary · Under 18 | 1,979 |
| Age Summary · 18 To 34 | 1,483.0× |
| Age Summary · 35 To 64 | 3,558.0× |
| Age Summary · 65 Plus | 1,395 |
| Population under 18 | 1,979 |
| Median age | 39.4 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 8,415 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.20 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.
| White residents | 7,400 |
|---|---|
| Asian residents | 319 |
| Hispanic or Latino residents | 611 |
| Diversity Index · Diversity index (Simpson) | 20.4% |
| Diversity Index · Diversity label | somewhat diverse |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 88.8% |
| Asian population | 4.4% (vs Wisconsin 3.1%) |
| Black population | 1.9% (vs Wisconsin 2.7%) |
| Hispanic or Latino population | 7.6% (vs Wisconsin 6.6%) |
| White (non-Hispanic) population | 83.9% (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)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 0.3% are foreign-born — below the U.S. average of 13.9%. 6% have naturalized to U.S. citizenship.
| Residents born in this state | 6,468 |
|---|---|
| Residents born in another state | 1,373 |
| Share born in this state | 76.9% |
| Share born in another state | 23.1% |
| Native-born U.S. citizens | 16.3% |
| Foreign-born residents | 0.3% |
| Naturalized citizens | 6.5% |
| Total foreign-born residents | 447 |
| From Europe | 55 |
| From Africa | 316 |
Households & Family Composition
3,331 households. Averaging 2.5 people each — matches the U.S. average of 2.5. 64% are family households — near the U.S. share of ~65%. Of 2,078 families, 48% are married couples with children.
| Children under 18 | 2,115 |
|---|---|
| Total families | 2,078 |
| Married couples with children | 989 |
| Single-parent households | 37 |
| Average household size | 2.55 |
| Women who gave birth (past year) | 11.4% |
| Grandparents living with grandchildren | 39 |
| Family households | 2,146 households (vs Wisconsin 7,092) |
| Households that are families | 64.4% (vs Wisconsin 57.2%) |
| Total households | 3,331 households (vs Wisconsin 10,843) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 7.7% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 168 residents per year on net (IRS migration data).
| Moved within the county (past year) | 7.7% |
|---|---|
| Migration · People moving in (annual) | 98,523 |
| Migration · People moving out (annual) | 98,355 |
| Migration · Net migration (in − out) | 168 |
| Migration · Population growing | Yes |
| Migration · Year | 2022-2023 |
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 disability | 373 |
|---|---|
| Disability rate | 4.5% |
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. 55 residents live in group quarters (0.7% of population).
| Living in group quarters | 55 |
|---|
Other
| Congressional District · District | 1 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 55127 |
| Cdc Birth Rate · State Fips | 55 |
| Cdc Birth Rate · County Fips | 127 |
| Cdc Birth Rate · County | Walworth |
| Cdc Birth Rate · Birth Rate | 7.6% |
| Cdc Birth Rate · Lower Ci | 6.40 |
| Cdc Birth Rate · Upper Ci | 9.00 |
| Cdc Mortality · Fips | 55127 |
| Cdc Mortality · County | Walworth County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 3,060 |
| Cdc Vaccination · Fips | 55127 |
| Cdc Vaccination · County | Walworth County |
| Cdc Vaccination · Dose1 Pop Pct | 62.4% |
| Cdc Vaccination · Series Complete Pct | 56.8% |
| Cdc Vaccination · Booster Pct | 57.8% |
| Cdc Vaccination · Population 2019 | 103,868 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 6.80 |
| Family Score · Schools | 8 |
| Family Score · Childcare Centers | 6 |
| Family Score · Children Pct | 23.5% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 8,415, stable, family-oriented, upper-middle, mixed |
| Town Summary · Population | 8,415 people (vs Wisconsin 25,785) |
| Town Summary · County | Walworth County |
Sources: NCES school congressional district assignment · federal dataset cascade