Elgin: Demographics & People
About 114,934 people live in Elgin, in 39,317 households. Population grew 0.7% from 114,106 (2022) to 114,934 (2024). Median age 36.7 years. (2.1y younger than Kane County; 1.0y younger than Illinois). Children under 18 are 25% of the population. Population is 49% Hispanic or Latino and 35% White (non-Hispanic). The community is moderately diverse (Simpson index 0.59). 72% of households are family-led. County is losing 127,111 residents per year (2022-2023). County health: 33% adult obesity, 12% smoke.
- 2.9 people per household (vs Illinois avg 2.5).
- 28% non-family households (singles, roommates) (vs Illinois 38%).
- 63 dependents per 100 working-age (youth + seniors / 18-64) (vs Illinois 64).
Population & Trend
Population grew 0.7% from 114,106 (2022) to 114,934 (2024) — about 1.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~115,774 (extrapolated at 0.4%/yr trend). Census Bureau Vintage estimate: 116,906.
| Census data vintage | 2024 |
|---|---|
| Population | 5,275,541 people |
| Annual growth rate · Population change | 0.7% |
| Annual growth rate · Population (2022) | 114,106 |
| Annual growth rate · Population (2024) | 114,934 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 114,934 people (vs Illinois 39,460) |
| Population Estimate | 116,906 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 36.7y is 2.2 years younger than the U.S. median (38.9y). Children under 18 make up 25% — above the U.S. share of ~22%.
| Age Summary · Median age | 36.7 years (vs Illinois 37.7y) |
|---|---|
| Age Summary · Children Pct | 25.3% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 114,934 |
| Age Summary · Under 18 | 29,074 |
| Age Summary · 18 To 34 | 26,076.0× |
| Age Summary · 35 To 64 | 44,250.0× |
| Age Summary · 65 Plus | 15,534 |
| Population under 18 | 29,074 |
| Median age | 36.7 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 114,934 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.59 (0 = single group, 1 = perfectly even distribution); this is read as moderately diverse.
| White residents | 51,742 |
|---|---|
| Black residents | 5,898 |
| Asian residents | 6,883 |
| Hispanic or Latino residents | 55,251 |
| Diversity Index · Diversity index (Simpson) | 59.5% |
| Diversity Index · Diversity label | moderately diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 46.1% |
| Asian population | 6.6% (vs Illinois 6.1%) |
| Black population | 5.2% (vs Illinois 9.3%) |
| Hispanic or Latino population | 48.7% (vs Illinois 17.6%) |
| White (non-Hispanic) population | 34.9% (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). 2.4% are foreign-born — below the U.S. average of 13.9%. 26% have naturalized to U.S. citizenship.
| Residents born in this state | 69,643 |
|---|---|
| Residents born in another state | 12,215 |
| Share born in this state | 60.6% |
| Share born in another state | 39.4% |
| Native-born U.S. citizens | 10.6% |
| Foreign-born residents | 2.4% |
| Naturalized citizens | 26.4% |
| Total foreign-born residents | 29,227 |
| From Europe | 2,113 |
| From Asia | 7 |
| From Africa | 4,992 |
| From Latin America | 485 |
| Census Foreign Born · Caribbean | 30 |
Households & Family Composition
39,317 households. Averaging 2.9 people each — larger than the U.S. average of 2.5. 72% are family households — above the U.S. share of ~65%. Of 27,965 families, 31% are married couples with children.
| Children under 18 | 29,334 |
|---|---|
| Total families | 27,965 |
| Married couples with children | 8,802 |
| Single-parent households | 882 |
| Average household size | 2.89 |
| Women who gave birth (past year) | 11.0% |
| Grandparents living with grandchildren | 2,640 |
| Grandparents responsible for grandchildren | 1,382 |
| Family households | 28,275 households (vs Illinois 9,709) |
| Households that are families | 71.9% (vs Illinois 62.4%) |
| Total households | 39,317 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. 11.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 127,111 residents per year on net (IRS migration data).
| Moved within the county (past year) | 11.2% |
|---|---|
| Migration · People moving in (annual) | 4,217,303 |
| Migration · People moving out (annual) | 4,344,414 |
| Migration · Net migration (in − out) | -127,111 |
| 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 | 5,064 |
|---|---|
| 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. 1,877 residents live in group quarters (1.6% of population).
| Living in group quarters | 1,877 |
|---|
Other
| Congressional District · District | 8 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17031 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 031 |
| Cdc Birth Rate · County | Cook |
| Cdc Birth Rate · Birth Rate | 15.3% |
| Cdc Birth Rate · Lower Ci | 14.90 |
| Cdc Birth Rate · Upper Ci | 15.70 |
| Cdc Mortality · Fips | 17031 |
| Cdc Mortality · County | Cook County |
| Cdc Mortality · Urban Rural | Large central metro |
| Cdc Mortality · Total Deaths 2020 2023 | 165,505 |
| Cdc Vaccination · Fips | 17031 |
| Cdc Vaccination · County | Cook County |
| Cdc Vaccination · Dose1 Pop Pct | 84.0% |
| Cdc Vaccination · Series Complete Pct | 75.2% |
| Cdc Vaccination · Booster Pct | 58.5% |
| Cdc Vaccination · Population 2019 | 5,150,233 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 32 |
| Family Score · Childcare Centers | 13 |
| Family Score · Youth Sports Orgs | 5 |
| Family Score · Children Pct | 25.3% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 114,934, stable, family-oriented, upper-middle, mixed |
| Town Summary · Population | 114,934 people (vs Illinois 39,460) |
| Town Summary · County | Cook County |
Sources: NCES school congressional district assignment · federal dataset cascade