Annawan: Demographics & People
865 people call Annawan home, in 399 households. Population shrank 9.4% from 955 (2022) to 865 (2024). Median age 40.8 years. (2.8y younger than Henry County; 3.1y older than Illinois). Children under 18 are 23% of the population. Population is 96% White (non-Hispanic) and 1% Asian. The community is relatively homogeneous (Simpson index 0.08). 59% of households are family-led. County is losing 223 residents per year (2022-2023). County health: 38% adult obesity, 19% smoke.
- 2.2 people per household (vs Illinois avg 2.5).
- 41% non-family households (singles, roommates) (vs Illinois 38%).
- 84 dependents per 100 working-age (youth + seniors / 18-64) (vs Illinois 64).
Population & Trend
Population shrank 9.4% from 955 (2022) to 865 (2024). Estimated 2026 population: ~785 (extrapolated at -4.7%/yr trend). Census Bureau Vintage estimate: 686.
| Census data vintage | 2024 |
|---|---|
| Population | 33,244 people |
| Annual growth rate · Population change | -9.4% |
| Annual growth rate · Population (2022) | 955 |
| Annual growth rate · Population (2024) | 865 |
| Annual growth rate · Trend category | shrinking |
| Population | 865 people (vs Illinois 39,460) |
| Population Estimate | 686 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 40.8y is 1.9 years older than the U.S. median (38.9y). Children under 18 make up 23% — near the U.S. share of ~22%.
| Age Summary · Median age | 40.8 years (vs Illinois 37.7y) |
|---|---|
| Age Summary · Children Pct | 22.8% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 865 |
| Age Summary · Under 18 | 197 |
| Age Summary · 18 To 34 | 175.0× |
| Age Summary · 35 To 64 | 294.0× |
| Age Summary · 65 Plus | 199 |
| Population under 18 | 197 |
| Median age | 40.8 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 865 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.08 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 875 |
|---|---|
| Black residents | 12 |
| Asian residents | 11 |
| Hispanic or Latino residents | 17 |
| Diversity Index · Diversity index (Simpson) | 8.5% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 95.6% |
| Asian population | 1.4% (vs Illinois 6.1%) |
| Hispanic or Latino population | 1.3% (vs Illinois 17.6%) |
| White (non-Hispanic) population | 96.4% (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). 0.3% are foreign-born — below the U.S. average of 13.9%. 1% have naturalized to U.S. citizenship.
| Residents born in this state | 761 |
|---|---|
| Residents born in another state | 91 |
| Share born in this state | 88.0% |
| Share born in another state | 12.0% |
| Native-born U.S. citizens | 10.5% |
| Foreign-born residents | 0.3% |
| Naturalized citizens | 1.2% |
| Total foreign-born residents | 21 |
| From Africa | 6 |
Households & Family Composition
399 households. Averaging 2.4 people each — smaller than the U.S. average of 2.5. 59% are family households — below the U.S. share of ~65%. Of 255 families, 37% are married couples with children.
| Children under 18 | 250 |
|---|---|
| Total families | 255 |
| Married couples with children | 95 |
| Single-parent households | 7 |
| Average household size | 2.37 |
| Women who gave birth (past year) | 8.3% |
| Grandparents living with grandchildren | 7 |
| Family households | 236 households (vs Illinois 9,709) |
| Households that are families | 59.1% (vs Illinois 62.4%) |
| Total households | 399 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 223 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.7% |
|---|---|
| Migration · People moving in (annual) | 30,694 |
| Migration · People moving out (annual) | 30,917 |
| Migration · Net migration (in − out) | -223 |
| 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 | 46 |
|---|---|
| Disability rate | 5.9% |
Other
| Congressional District · District | 17 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17011 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 011 |
| Cdc Birth Rate · County | Bureau |
| Cdc Birth Rate · Birth Rate | 14.3% |
| Cdc Birth Rate · Lower Ci | 11.30 |
| Cdc Birth Rate · Upper Ci | 17.90 |
| Cdc Mortality · Fips | 17011 |
| Cdc Mortality · County | Bureau County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 1,424 |
| Cdc Vaccination · Fips | 17011 |
| Cdc Vaccination · County | Bureau County |
| Cdc Vaccination · Dose1 Pop Pct | 64.7% |
| Cdc Vaccination · Series Complete Pct | 58.8% |
| Cdc Vaccination · Booster Pct | 57.8% |
| Cdc Vaccination · Population 2019 | 32,628 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 2.00 |
| Family Score · Schools | 2 |
| Family Score · Children Pct | 22.8% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 865, shrinking, established, middle-class, mixed |
| Town Summary · Population | 865 people (vs Illinois 39,460) |
| Town Summary · County | Bureau County |
Sources: NCES school congressional district assignment · federal dataset cascade