Mallow: Demographics & People

About 537 people live in Mallow, in 239 households. Population grew 5.1% from 511 (2022) to 537 (2024). Median age 53.9 years. (5.6y older than Alleghany County; 16.1y older than Virginia). Children under 18 are 9% of the population. Population is 75% White (non-Hispanic) and 15% Black. The community is relatively homogeneous (Simpson index 0.20). 69% of households are family-led. County is gaining 116 residents per year (2022-2023). County health: 41% adult obesity, 19% smoke.

Population & Trend

Population grew 5.1% from 511 (2022) to 537 (2024) — about 8.5× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~564 (extrapolated at 2.5%/yr trend). Census Bureau Vintage estimate: 602.

Census data vintage2024
Population15,223 people
Annual growth rate · Population change5.1%
Annual growth rate · Population (2022)511
Annual growth rate · Population (2024)537
Annual growth rate · Population growingYes
Annual growth rate · Trend categorybooming
Population537 people (vs Virginia 42,214) population: 4 observations from 2026-04-17 to 2026-04-28
Population Estimate602

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

Age Distribution

Median age 53.9y is 15.0 years older than the U.S. median (38.9y). Children under 18 make up 9% — below the U.S. share of ~22%.

Age Summary · Median age53.9 years (vs Virginia 37.8y)
Age Summary · Children Pct9.3%
Age Summary · Characterretirement community
Age Summary · Total Pop537
Age Summary · Under 1850
Age Summary · 18 To 34121.0×
Age Summary · 35 To 64211.0×
Age Summary · 65 Plus155
Population under 1850
Median age53.9 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 537 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.20 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.

White residents455
Black residents56
Diversity Index · Diversity index (Simpson)19.5%
Diversity Index · Diversity labelrelatively homogeneous
Diversity Index · Groups counted2
Diversity Index · Largest group share89.0%
Asian population9.7% (vs Virginia 5.6%)
Black population15.1% (vs Virginia 18.2%)
White (non-Hispanic) population75.2% (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 (5)

(unnamed)
Black
(unnamed)
German
(unnamed)
American
(unnamed)
Irish
(unnamed)
English

Citizenship & Origin

Where residents were born and their citizenship status (Census ACS).

Residents born in this state341
Residents born in another state169
Share born in this state63.5%
Share born in another state36.5%
Native-born U.S. citizens31.5%
Naturalized citizens5.0%
Total foreign-born residents160

Households & Family Composition

239 households. Averaging 2.4 people each — smaller than the U.S. average of 2.5. 69% are family households — above the U.S. share of ~65%. Of 136 families, 23% are married couples with children.

Children under 1868
Total families136
Married couples with children31
Average household size2.37
Women who gave birth (past year)12.0%
Grandparents living with grandchildren421
Grandparents responsible for grandchildren165
Family households165 households (vs Virginia 9,367)
Households that are families69.0% (vs Virginia 65.0%)
Total households239 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. 21.6% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 116 residents per year on net (IRS migration data).

Moved within the county (past year)21.6%
Migration · People moving in (annual)13,116
Migration · People moving out (annual)13,000
Migration · Net migration (in − out)116
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 disability64
Disability rate10.6%

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. 11 residents live in group quarters (2.0% of population).

Living in group quarters11

Other

Congressional District · District6
Congressional District · FormattedVA-06
Congressional District · Congress118th
Cdc Birth Rate · Fips51005
Cdc Birth Rate · State Fips51
Cdc Birth Rate · County Fips005
Cdc Birth Rate · CountyAlleghany
Cdc Birth Rate · Birth Rate20.5%
Cdc Birth Rate · Lower Ci15.20
Cdc Birth Rate · Upper Ci27.00
Cdc Mortality · Fips51005
Cdc Mortality · CountyAlleghany County
Cdc Mortality · Urban RuralNoncore
Cdc Mortality · Total Deaths 2020 2023936
Cdc Vaccination · Fips51005
Cdc Vaccination · CountyAlleghany County
Cdc Vaccination · Dose1 Pop Pct48.4%
Cdc Vaccination · Series Complete Pct39.9%
Cdc Vaccination · Booster Pct8.4%
Cdc Vaccination · Population 201914,860
Cdc Vaccination · Metro StatusNon-metro
Family Score · Score2.50
Family Score · Schools3
Family Score · Children Pct9.3%
Family Score · Ratinglimited
Town Summary · Key Factspopulation 537, booming, retirement community, middle-class, blue collar
Town Summary · Population537 people (vs Virginia 42,214)
Town Summary · CountyAlleghany County

Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade