Mount Sidney: Demographics & People
703 people call Mount Sidney home, in 271 households. Population grew 7.0% from 657 (2022) to 703 (2024). Median age 42.6 years. (2.5y younger than Augusta County; 4.8y older than Virginia). Children under 18 are 15% of the population. Population is 61% White (non-Hispanic) and 26% Hispanic or Latino. The community is moderately diverse (Simpson index 0.48). 83% of households are family-led. County is gaining 1,661 residents per year (2022-2023). County health: 38% adult obesity, 17% smoke.
- 2.6 people per household (vs Virginia avg 2.6).
- 17% non-family households (singles, roommates) (vs Virginia 35%).
- 41 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Population grew 7.0% from 657 (2022) to 703 (2024) — about 11.7× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~753 (extrapolated at 3.5%/yr trend). Census Bureau Vintage estimate: 823.
| Census data vintage | 2024 |
|---|---|
| Population | 77,487 people |
| Annual growth rate · Population change | 7.0% |
| Annual growth rate · Population (2022) | 657 |
| Annual growth rate · Population (2024) | 703 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 703 people (vs Virginia 42,214) |
| Population Estimate | 823 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 42.6y is 3.7 years older than the U.S. median (38.9y). Children under 18 make up 15% — below the U.S. share of ~22%.
| Age Summary · Median age | 42.6 years (vs Virginia 37.8y) |
|---|---|
| Age Summary · Children Pct | 14.7% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 703 |
| Age Summary · Under 18 | 103 |
| Age Summary · 18 To 34 | 174.0× |
| Age Summary · 35 To 64 | 323.0× |
| Age Summary · 65 Plus | 103 |
| Population under 18 | 103 |
| Median age | 42.6 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 703 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.48 (0 = single group, 1 = perfectly even distribution); this is read as moderately diverse.
| White residents | 437 |
|---|---|
| Asian residents | 56 |
| Hispanic or Latino residents | 153 |
| Diversity Index · Diversity index (Simpson) | 47.9% |
| Diversity Index · Diversity label | moderately diverse |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 67.6% |
| Asian population | 12.4% (vs Virginia 5.6%) |
| Hispanic or Latino population | 25.5% (vs Virginia 10.1%) |
| White (non-Hispanic) population | 60.9% (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 (7)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 485 |
|---|---|
| Residents born in another state | 140 |
| Share born in this state | 69.0% |
| Share born in another state | 31.0% |
| Native-born U.S. citizens | 19.9% |
| Naturalized citizens | 11.1% |
| Total foreign-born residents | 118 |
| From Europe | 9 |
| From Africa | 26 |
Households & Family Composition
271 households. Averaging 2.4 people each — matches the U.S. average of 2.5. 83% are family households — above the U.S. share of ~65%. Of 229 families, 10% are married couples with children.
| Children under 18 | 96 |
|---|---|
| Total families | 229 |
| Married couples with children | 24 |
| Average household size | 2.42 |
| Women who gave birth (past year) | 12.7% |
| Grandparents living with grandchildren | 1,198 |
| Grandparents responsible for grandchildren | 321 |
| Family households | 224 households (vs Virginia 9,367) |
| Households that are families | 82.7% (vs Virginia 65.0%) |
| Total households | 271 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. 9.4% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,661 residents per year on net (IRS migration data).
| Moved within the county (past year) | 9.4% |
|---|---|
| Migration · People moving in (annual) | 74,553 |
| Migration · People moving out (annual) | 72,892 |
| Migration · Net migration (in − out) | 1,661 |
| Migration · Population growing | Yes |
| 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 | 80 |
|---|---|
| Disability rate | 8.9% |
Other
| Congressional District · District | 6 |
|---|---|
| Congressional District · Formatted | VA-06 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 51015 |
| Cdc Birth Rate · State Fips | 51 |
| Cdc Birth Rate · County Fips | 015 |
| Cdc Birth Rate · County | Augusta |
| Cdc Birth Rate · Birth Rate | 12.2% |
| Cdc Birth Rate · Lower Ci | 10.10 |
| Cdc Birth Rate · Upper Ci | 14.60 |
| Cdc Mortality · Fips | 51015 |
| Cdc Mortality · County | Augusta County |
| Cdc Mortality · Urban Rural | Small metro |
| Cdc Mortality · Total Deaths 2020 2023 | 3,707 |
| Cdc Vaccination · Fips | 51015 |
| Cdc Vaccination · County | Augusta County |
| Cdc Vaccination · Dose1 Pop Pct | 56.2% |
| Cdc Vaccination · Series Complete Pct | 49.9% |
| Cdc Vaccination · Booster Pct | 32.9% |
| Cdc Vaccination · Population 2019 | 75,558 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 8.00 |
| Family Score · Schools | 14 |
| Family Score · Children Pct | 14.7% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 703, booming, established, upper-middle, white collar |
| Town Summary · Population | 703 people (vs Virginia 42,214) |
| Town Summary · County | Augusta County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade