Batavia: Demographics & People
Batavia's population stands at 27,151 people, in 10,708 households. Population grew 1.6% from 26,730 (2022) to 27,151 (2024). Median age 42.0 years. (3.2y older than Kane County; 4.3y older than Illinois). Children under 18 are 25% of the population. Population is 82% White (non-Hispanic) and 9% Hispanic or Latino. The community is somewhat diverse (Simpson index 0.24). 67% of households are family-led. County is losing 16,484 residents per year (2022-2023). County health: 29% adult obesity, 10% smoke.
- 2.5 people per household (vs Illinois avg 2.5).
- 33% non-family households (singles, roommates) (vs Illinois 38%).
- 76 dependents per 100 working-age (youth + seniors / 18-64) (vs Illinois 64).
Population & Trend
Population grew 1.6% from 26,730 (2022) to 27,151 (2024) — about 2.6× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~27,581 (extrapolated at 0.8%/yr trend). Census Bureau Vintage estimate: 28,163.
| Census data vintage | 2024 |
|---|---|
| Population | 932,877 people |
| Annual growth rate · Population change | 1.6% |
| Annual growth rate · Population (2022) | 26,730 |
| Annual growth rate · Population (2024) | 27,151 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 27,151 people (vs Illinois 39,460) |
| Population Estimate | 28,163 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 42.0y is 3.1 years older than the U.S. median (38.9y). Children under 18 make up 25% — above the U.S. share of ~22%.
| Age Summary · Median age | 42.0 years (vs Illinois 37.7y) |
|---|---|
| Age Summary · Children Pct | 24.8% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 27,151 |
| Age Summary · Under 18 | 6,740 |
| Age Summary · 18 To 34 | 4,153.0× |
| Age Summary · 35 To 64 | 11,233.0× |
| Age Summary · 65 Plus | 5,025 |
| Population under 18 | 6,740 |
| Median age | 42.0 years (vs Illinois 37.7y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 27,151 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.24 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.
| White residents | 22,429 |
|---|---|
| Black residents | 709 |
| Asian residents | 383 |
| Hispanic or Latino residents | 2,295 |
| Diversity Index · Diversity index (Simpson) | 23.6% |
| Diversity Index · Diversity label | somewhat diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 86.9% |
| Asian population | 1.5% (vs Illinois 6.1%) |
| Black population | 2.4% (vs Illinois 9.3%) |
| Hispanic or Latino population | 8.9% (vs Illinois 17.6%) |
| White (non-Hispanic) population | 81.8% (vs Illinois 54.8%) |
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). 1.0% are foreign-born — below the U.S. average of 13.9%. 6% have naturalized to U.S. citizenship.
| Residents born in this state | 19,527 |
|---|---|
| Residents born in another state | 5,770 |
| Share born in this state | 71.9% |
| Share born in another state | 28.1% |
| Native-born U.S. citizens | 21.3% |
| Foreign-born residents | 1.0% |
| Naturalized citizens | 5.8% |
| Total foreign-born residents | 1,433 |
| From Europe | 412 |
| From Asia | 17 |
| From Africa | 490 |
| Census Foreign Born · South America | 11 |
Households & Family Composition
10,708 households. Averaging 2.6 people each — matches the U.S. average of 2.5. 67% are family households — above the U.S. share of ~65%. Of 7,026 families, 39% are married couples with children.
| Children under 18 | 6,575 |
|---|---|
| Total families | 7,026 |
| Married couples with children | 2,714 |
| Single-parent households | 338 |
| Average household size | 2.57 |
| Women who gave birth (past year) | 13.5% |
| Grandparents living with grandchildren | 288 |
| Grandparents responsible for grandchildren | 97 |
| Family households | 7,186 households (vs Illinois 9,709) |
| Households that are families | 67.1% (vs Illinois 62.4%) |
| Total households | 10,708 households (vs Illinois 14,867) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 8.7% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 16,484 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.7% |
|---|---|
| Migration · People moving in (annual) | 905,072 |
| Migration · People moving out (annual) | 921,556 |
| Migration · Net migration (in − out) | -16,484 |
| 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 | 1,121 |
|---|---|
| Disability rate | 4.3% |
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. 77 residents live in group quarters (0.3% of population).
| Living in group quarters | 77 |
|---|
Other
| Congressional District · District | 14 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17043 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 043 |
| Cdc Birth Rate · County | Du Page |
| Cdc Birth Rate · Birth Rate | 6.1% |
| Cdc Birth Rate · Lower Ci | 5.70 |
| Cdc Birth Rate · Upper Ci | 6.60 |
| Cdc Mortality · Fips | 17043 |
| Cdc Mortality · County | DuPage County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 27,137 |
| Cdc Vaccination · Fips | 17043 |
| Cdc Vaccination · County | DuPage County |
| Cdc Vaccination · Dose1 Pop Pct | 85.9% |
| Cdc Vaccination · Series Complete Pct | 79.6% |
| Cdc Vaccination · Booster Pct | 62.0% |
| Cdc Vaccination · Population 2019 | 922,921 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 7.40 |
| Family Score · Schools | 10 |
| Family Score · Childcare Centers | 3 |
| Family Score · Youth Sports Orgs | 1 |
| Family Score · Children Pct | 24.8% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 27,151, growing, established, affluent, white collar |
| Town Summary · Population | 27,151 people (vs Illinois 39,460) |
| Town Summary · County | DuPage County |
Sources: NCES school congressional district assignment · federal dataset cascade