Indianapolis city (balance)Demographics & People
About 885,860 people live in Indianapolis city (balance), in 362,961 households. Population grew 0.4% from 882,043 (2022) to 885,860 (2024). Median age 34.3 years. (3.7y younger than Indiana). Children under 18 are 25% of the population. Population is 49% White (non-Hispanic) and 28% Black. The community is highly diverse (Simpson index 0.61). 56% of households are family-led. County is losing 23,257 residents per year (2022-2023). County health: 39% adult obesity, 18% smoke.
- 2.4 people per household (vs Indiana avg 2.5).
- 44% non-family households (singles, roommates) (vs Indiana 42%).
- 61 dependents per 100 working-age (youth + seniors / 18-64) (vs Indiana 67).
Population & Trend
Population grew 0.4% from 882,043 (2022) to 885,860 (2024) — close to the U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~889,673 (extrapolated at 0.2%/yr trend). Census Bureau Vintage estimate: 894,749.
| Census data vintage | 2024 |
|---|---|
| County Population | 977,203 people |
| Annual growth rate · Population change | 43.0% |
| Annual growth rate · Population (2022) | 882,043 |
| Annual growth rate · Population (2024) | 885,860 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 885,860 people (vs Indiana 51,043) |
| Population Estimate | 894,749 |
Sources: U.S. Census Bureau, ACS 5-Year · U.S. Census Bureau, ACS 5-Year DP05 · U.S. Census Bureau, Vintage Population Estimates · Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 34.3y is 4.6 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 | 34.3 years (vs Indiana 36.0y) |
|---|---|
| Age Summary · Children Pct | 24.8% |
| Age Summary · Character | young professional |
| Age Summary · Total Pop | 885,860 |
| Age Summary · Under 18 | 220,087 |
| Age Summary · 18 To 34 | 233,500 |
| Age Summary · 35 To 64 | 316,486 |
| Age Summary · 65 Plus | 115,787 |
| Median age | 34.3 years (vs Indiana 36.0y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 885,860 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.61 (0 = single group, 1 = perfectly even distribution); this is read as highly diverse.
| Diversity Index · Diversity index (Simpson) | 60.8% |
|---|---|
| Diversity Index · Diversity label | highly diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 54.0% |
| Asian population | 4.2% (vs Indiana 2.1%) |
| Black population | 27.6% (vs Indiana 8.1%) |
| Hispanic or Latino population | 13.8% (vs Indiana 8.9%) |
| White (non-Hispanic) population | 48.9% (vs Indiana 74.1%) |
Sources: U.S. Census Bureau, ACS 5-Year DP05 · 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)
Sources: Census ACS 2022 B04006+B03001+B02001
Households & Family Composition
362,961 households. Averaging 2.4 people each — matches the U.S. average of 2.5. 56% are family households — below the U.S. share of ~65%. Of 197,997 families, 25% are married couples with children.
| Family households | 202,937 households (vs Indiana 11,890) |
|---|---|
| Households that are families | 55.9% (vs Indiana 57.7%) |
| Total households | 362,961 households (vs Indiana 21,552) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 14.6% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 23,257 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 837,711 |
|---|---|
| Migration · People moving out (annual) | 860,968 |
| Migration · Net migration (in − out) | -23,257 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Other
| County Cdc Birth Rate · Fips | 18097 |
|---|---|
| County Cdc Birth Rate · State Fips | 18 |
| County Cdc Birth Rate · County Fips | 097 |
| County Cdc Birth Rate · County | Marion |
| County Cdc Birth Rate · Birth Rate | 27.9 per 1,000 |
| County Cdc Birth Rate · Lower Ci | 26.80 |
| County Cdc Birth Rate · Upper Ci | 29.00 |
| County Cdc Mortality · Fips | 18097 |
| County Cdc Mortality · County | Marion County |
| County Cdc Mortality · Urban Rural | Large central metro |
| County Cdc Mortality · Total Deaths 2020 2023 | 42,990 |
Sources: CDC NCHS Vital Statistics · CDC WONDER