Hillsboro: Demographics & People
Hillsboro is home to 141 people, in 61 households. Population shrank 4.1% from 147 (2022) to 141 (2024). Median age 65.1 years. (26.9y older than Loudoun County; 27.3y older than Virginia). Children under 18 are 6% of the population. Population is 99% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.00). 70% of households are family-led. County is losing 1,912 residents per year (2022-2023). County health: 29% adult obesity, 9% smoke.
- 2.3 people per household (vs Virginia avg 2.6).
- 30% non-family households (singles, roommates) (vs Virginia 35%).
- 143 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Population shrank 4.1% from 147 (2022) to 141 (2024). Estimated 2026 population: ~135 (extrapolated at -2.0%/yr trend). Census Bureau Vintage estimate: 127.
| Census data vintage | 2024 |
|---|---|
| Population | 420,959 people |
| Annual growth rate · Population change | -4.1% |
| Annual growth rate · Population (2022) | 147 |
| Annual growth rate · Population (2024) | 141 |
| Annual growth rate · Trend category | declining |
| Population | 141 people (vs Virginia 42,214) |
| Population Estimate | 127 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 65.1y is 26.2 years older than the U.S. median (38.9y). Children under 18 make up 6% — below the U.S. share of ~22%.
| Age Summary · Median age | 65.1 years (vs Virginia 37.8y) |
|---|---|
| Age Summary · Children Pct | 6.4% |
| Age Summary · Character | retirement community |
| Age Summary · Total Pop | 141 |
| Age Summary · Under 18 | 9 |
| Age Summary · 18 To 34 | 11.0× |
| Age Summary · 35 To 64 | 47.0× |
| Age Summary · 65 Plus | 74 |
| Population under 18 | 9 |
| Median age | 65.1 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 141 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.00 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 145 |
|---|---|
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 1 |
| Diversity Index · Largest group share | 100.0% |
| White (non-Hispanic) population | 98.6% (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 (6)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 24 |
|---|---|
| Residents born in another state | 76 |
| Share born in this state | 17.0% |
| Share born in another state | 83.0% |
| Native-born U.S. citizens | 53.9% |
| Naturalized citizens | 29.1% |
| Total foreign-born residents | 39 |
| From Europe | 39 |
Households & Family Composition
61 households. Averaging 2.4 people each — smaller than the U.S. average of 2.5. 70% are family households — above the U.S. share of ~65%. Of 47 families, 13% are married couples with children.
| Children under 18 | 9 |
|---|---|
| Total families | 47 |
| Married couples with children | 6 |
| Average household size | 2.37 |
| Women who gave birth (past year) | 14.1% |
| Grandparents living with grandchildren | 3,199 |
| Grandparents responsible for grandchildren | 1,351 |
| Family households | 43 households (vs Virginia 9,367) |
| Households that are families | 70.5% (vs Virginia 65.0%) |
| Total households | 61 households (vs Virginia 14,324) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 9.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 1,912 residents per year on net (IRS migration data).
| Moved within the county (past year) | 9.2% |
|---|---|
| Migration · People moving in (annual) | 459,164 |
| Migration · People moving out (annual) | 461,076 |
| Migration · Net migration (in − out) | -1,912 |
| 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 | 22 |
|---|---|
| Disability rate | 14.5% |
Other
| Congressional District · District | 10 |
|---|---|
| Congressional District · Formatted | VA-10 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 51107 |
| Cdc Birth Rate · State Fips | 51 |
| Cdc Birth Rate · County Fips | 107 |
| Cdc Birth Rate · County | Loudoun |
| Cdc Birth Rate · Birth Rate | 4.4% |
| Cdc Birth Rate · Lower Ci | 3.90 |
| Cdc Birth Rate · Upper Ci | 4.90 |
| Cdc Mortality · Fips | 51107 |
| Cdc Mortality · County | Loudoun County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 6,646 |
| Cdc Vaccination · Fips | 51107 |
| Cdc Vaccination · County | Loudoun County |
| Cdc Vaccination · Dose1 Pop Pct | 94.7% |
| Cdc Vaccination · Series Complete Pct | 76.8% |
| Cdc Vaccination · Booster Pct | 48.2% |
| Cdc Vaccination · Population 2019 | 413,538 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 6.4% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 141, declining, retirement community, upper-middle, service economy |
| Town Summary · Population | 141 people (vs Virginia 42,214) |
| Town Summary · County | Loudoun County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade