Collinsville: Demographics & People

Collinsville's population stands at 7,139 people, in 2,925 households. Population shrank 6.6% from 7,645 (2022) to 7,139 (2024). Median age 37.4 years. (10.3y younger than Henry County). Children under 18 are 23% of the population. Population is 70% White (non-Hispanic) and 14% Black. The community is moderately diverse (Simpson index 0.45). 61% of households are family-led. County is gaining 1,187 residents per year (2022-2023). County health: 43% adult obesity, 23% smoke.

Population & Trend

Population shrank 6.6% from 7,645 (2022) to 7,139 (2024). Estimated 2026 population: ~6,674 (extrapolated at -3.3%/yr trend). Census Bureau Vintage estimate: 6,084.

Census data vintage2024
Population50,948 people
Annual growth rate · Population change-6.6%
Annual growth rate · Population (2022)7,645
Annual growth rate · Population (2024)7,139
Annual growth rate · Trend categoryshrinking
Population7,139 people (vs Virginia 42,214) population: 4 observations from 2026-04-17 to 2026-04-28
Population Estimate6,084

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

Age Distribution

Median age 37.4y is 1.5 years younger than the U.S. median (38.9y). Children under 18 make up 23% — above the U.S. share of ~22%.

Age Summary · Median age37.4 years (vs Virginia 37.8y)
Age Summary · Children Pct23.1%
Age Summary · Characterfamily-oriented
Age Summary · Total Pop7,139
Age Summary · Under 181,652
Age Summary · 18 To 341,746.0×
Age Summary · 35 To 642,474.0×
Age Summary · 65 Plus1,267
Population under 181,652
Median age37.4 years (vs Virginia 37.8y)

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

Race, Ethnicity & Diversity

Of 7,139 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.45 (0 = single group, 1 = perfectly even distribution); this is read as moderately diverse.

White residents5,482
Black residents1,359
Asian residents154
Hispanic or Latino residents651
Diversity Index · Diversity index (Simpson)44.7%
Diversity Index · Diversity labelmoderately diverse
Diversity Index · Groups counted4
Diversity Index · Largest group share71.7%
Asian population1.9% (vs Virginia 5.6%)
Black population14.4% (vs Virginia 18.2%)
Hispanic or Latino population10.7% (vs Virginia 10.1%)
White (non-Hispanic) population70.4% (vs Virginia 53.8%)

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)

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

Citizenship & Origin

Where residents were born and their citizenship status (Census ACS). 1.8% are foreign-born — below the U.S. average of 13.9%. 4% have naturalized to U.S. citizenship.

Residents born in this state5,104
Residents born in another state1,596
Share born in this state71.5%
Share born in another state28.5%
Native-born U.S. citizens22.4%
Foreign-born residents1.8%
Naturalized citizens4.4%
Total foreign-born residents370
From Europe67
From Africa40

Households & Family Composition

2,925 households. Averaging 2.5 people each — matches the U.S. average of 2.5. 61% are family households — below the U.S. share of ~65%. Of 1,983 families, 25% are married couples with children.

Children under 181,799
Total families1,983
Married couples with children503
Single-parent households108
Average household size2.52
Women who gave birth (past year)17.2%
Grandparents living with grandchildren128
Grandparents responsible for grandchildren44
Family households1,785 households (vs Virginia 9,367)
Households that are families61.0% (vs Virginia 65.0%)
Total households2,925 households (vs Virginia 14,324) 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. 6.1% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,187 residents per year on net (IRS migration data).

Moved within the county (past year)6.1%
Migration · People moving in (annual)42,285
Migration · People moving out (annual)41,098
Migration · Net migration (in − out)1,187
Migration · Population growingYes
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 disability453
Disability rate6.1%

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. 80 residents live in group quarters (1.1% of population).

Living in group quarters80

Other

Congressional District · District9
Congressional District · Congress118th
Cdc Birth Rate · Fips51089
Cdc Birth Rate · State Fips51
Cdc Birth Rate · County Fips089
Cdc Birth Rate · CountyHenry
Cdc Birth Rate · Birth Rate18.8%
Cdc Birth Rate · Lower Ci15.60
Cdc Birth Rate · Upper Ci22.40
Cdc Mortality · Fips51089
Cdc Mortality · CountyHenry County
Cdc Mortality · Urban RuralMicropolitan
Cdc Mortality · Total Deaths 2020 20231,587
Cdc Vaccination · Fips51089
Cdc Vaccination · CountyHenry County
Cdc Vaccination · Dose1 Pop Pct45.2%
Cdc Vaccination · Series Complete Pct39.7%
Cdc Vaccination · Booster Pct24.2%
Cdc Vaccination · Population 201950,557
Cdc Vaccination · Metro StatusNon-metro
Family Score · Score2.40
Family Score · Schools1
Family Score · Childcare Centers3
Family Score · Children Pct23.1%
Family Score · Ratinglimited
Town Summary · Key Factspopulation 7,139, shrinking, family-oriented, middle-class, mixed
Town Summary · Population7,139 people (vs Virginia 42,214)
Town Summary · CountyHenry County

Sources: NCES school congressional district assignment · federal dataset cascade