Morrisville: Demographics & People
31,422 people call Morrisville home, in 12,300 households. Population grew 3.1% from 30,471 (2022) to 31,422 (2024). Median age 35.2 years. (2.1y younger than Wake County; 1.0y younger than North Carolina). Children under 18 are 23% of the population. Population is 41% Asian and 35% White (non-Hispanic). The community is highly diverse (Simpson index 0.64). 65% of households are family-led. County is losing 3,385 residents per year (2022-2023). County health: 32% adult obesity, 11% smoke.
- 2.6 people per household (vs North Carolina avg 2.5).
- 35% non-family households (singles, roommates) (vs North Carolina 42%).
- 43 dependents per 100 working-age (youth + seniors / 18-64) (vs North Carolina 64).
Population & Trend
Population grew 3.1% from 30,471 (2022) to 31,422 (2024) — about 5.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~32,410 (extrapolated at 1.6%/yr trend). Census Bureau Vintage estimate: 33,756.
| Census data vintage | 2024 |
|---|---|
| Population | 324,833 people |
| Annual growth rate · Population change | 3.1% |
| Annual growth rate · Population (2022) | 30,471 |
| Annual growth rate · Population (2024) | 31,422 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 31,422 people (vs North Carolina 70,630) |
| Population Estimate | 33,756 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 35.2y is 3.7 years younger than the U.S. median (38.9y). Children under 18 make up 23% — near the U.S. share of ~22%.
| Age Summary · Median age | 35.2 years (vs North Carolina 36.2y) |
|---|---|
| Age Summary · Children Pct | 23.0% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 31,422 |
| Age Summary · Under 18 | 7,218 |
| Age Summary · 18 To 34 | 8,374.0× |
| Age Summary · 35 To 64 | 13,656.0× |
| Age Summary · 65 Plus | 2,174 |
| Population under 18 | 7,218 |
| Median age | 35.2 years (vs North Carolina 36.2y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 31,422 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.64 (0 = single group, 1 = perfectly even distribution); this is read as highly diverse.
| White residents | 11,245 |
|---|---|
| Black residents | 4,004 |
| Asian residents | 12,761 |
| Hispanic or Latino residents | 1,167 |
| Diversity Index · Diversity index (Simpson) | 64.0% |
| Diversity Index · Diversity label | highly diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 43.7% |
| Asian population | 41.0% (vs North Carolina 3.2%) |
| Black population | 13.6% (vs North Carolina 26.0%) |
| Hispanic or Latino population | 3.6% (vs North Carolina 12.6%) |
| White (non-Hispanic) population | 35.1% (vs North Carolina 51.1%) |
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). 0.9% are foreign-born — below the U.S. average of 13.9%. 36% have naturalized to U.S. citizenship.
| Residents born in this state | 7,212 |
|---|---|
| Residents born in another state | 12,629 |
| Share born in this state | 23.0% |
| Share born in another state | 77.0% |
| Native-born U.S. citizens | 40.2% |
| Foreign-born residents | 0.9% |
| Naturalized citizens | 36.0% |
| Total foreign-born residents | 10,407 |
| From Europe | 407 |
| From Africa | 8,912 |
Households & Family Composition
12,300 households. Averaging 2.6 people each — larger than the U.S. average of 2.5. 65% are family households — near the U.S. share of ~65%. Of 7,704 families, 51% are married couples with children.
| Children under 18 | 7,021 |
|---|---|
| Total families | 7,704 |
| Married couples with children | 3,904 |
| Single-parent households | 72 |
| Average household size | 2.65 |
| Women who gave birth (past year) | 8.1% |
| Grandparents living with grandchildren | 10 |
| Family households | 8,026 households (vs North Carolina 17,226) |
| Households that are families | 65.3% (vs North Carolina 58.5%) |
| Total households | 12,300 households (vs North Carolina 25,235) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 22.4% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 3,385 residents per year on net (IRS migration data).
| Moved within the county (past year) | 22.4% |
|---|---|
| Migration · People moving in (annual) | 290,880 |
| Migration · People moving out (annual) | 294,265 |
| Migration · Net migration (in − out) | -3,385 |
| 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 | 888 |
|---|---|
| Disability rate | 3.0% |
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. 18 residents live in group quarters (0.1% of population).
| Living in group quarters | 18 |
|---|
Other
| Congressional District · District | 4 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 37063 |
| Cdc Birth Rate · State Fips | 37 |
| Cdc Birth Rate · County Fips | 063 |
| Cdc Birth Rate · County | Durham |
| Cdc Birth Rate · Birth Rate | 15.9% |
| Cdc Birth Rate · Lower Ci | 14.70 |
| Cdc Birth Rate · Upper Ci | 17.20 |
| Cdc Mortality · Fips | 37063 |
| Cdc Mortality · County | Durham County |
| Cdc Mortality · Urban Rural | Medium metro |
| Cdc Mortality · Total Deaths 2020 2023 | 13,794 |
| Cdc Vaccination · Fips | 37063 |
| Cdc Vaccination · County | Durham County |
| Cdc Vaccination · Dose1 Pop Pct | 95.0% |
| Cdc Vaccination · Series Complete Pct | 81.3% |
| Cdc Vaccination · Booster Pct | 38.4% |
| Cdc Vaccination · Population 2019 | 321,488 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 6.40 |
| Family Score · Schools | 6 |
| Family Score · Childcare Centers | 8 |
| Family Score · Children Pct | 23.0% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 31,422, growing, family-oriented, affluent, white collar |
| Town Summary · Population | 31,422 people (vs North Carolina 70,630) |
| Town Summary · County | Durham County |
Sources: NCES school congressional district assignment · federal dataset cascade