Lake Monticello: Demographics & People
Census counts 10,662 people in Lake Monticello, in 4,258 households. Population shrank 1.5% from 10,820 (2022) to 10,662 (2024). Median age 42.1 years. (1.4y younger than Fluvanna County; 4.3y older than Virginia). Children under 18 are 21% of the population. Population is 78% White (non-Hispanic) and 7% Hispanic or Latino. The community is somewhat diverse (Simpson index 0.26). 76% of households are family-led. County is gaining 247 residents per year (2022-2023). County health: 39% adult obesity, 16% smoke.
- 2.5 people per household (vs Virginia avg 2.6).
- 24% non-family households (singles, roommates) (vs Virginia 35%).
- 84 dependents per 100 working-age (youth + seniors / 18-64) (vs Virginia 62).
Population & Trend
Population shrank 1.5% from 10,820 (2022) to 10,662 (2024). Estimated 2026 population: ~10,506 (extrapolated at -0.7%/yr trend). Census Bureau Vintage estimate: 10,302.
| Census data vintage | 2024 |
|---|---|
| Population | 27,249 people |
| Annual growth rate · Population change | -1.5% |
| Annual growth rate · Population (2022) | 10,820 |
| Annual growth rate · Population (2024) | 10,662 |
| Annual growth rate · Trend category | declining |
| Population | 10,662 people (vs Virginia 42,214) |
| Population Estimate | 10,302 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 42.1y is 3.2 years older than the U.S. median (38.9y). Children under 18 make up 21% — near the U.S. share of ~22%.
| Age Summary · Median age | 42.1 years (vs Virginia 37.8y) |
|---|---|
| Age Summary · Children Pct | 21.1% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 10,662 |
| Age Summary · Under 18 | 2,253 |
| Age Summary · 18 To 34 | 2,173.0× |
| Age Summary · 35 To 64 | 3,610.0× |
| Age Summary · 65 Plus | 2,626 |
| Population under 18 | 2,253 |
| Median age | 42.1 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 10,662 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.26 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.
| White residents | 8,721 |
|---|---|
| Black residents | 706 |
| Asian residents | 41 |
| Hispanic or Latino residents | 747 |
| Diversity Index · Diversity index (Simpson) | 26.1% |
| Diversity Index · Diversity label | somewhat diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 85.4% |
| Asian population | 0.4% (vs Virginia 5.6%) |
| Black population | 6.9% (vs Virginia 18.2%) |
| Hispanic or Latino population | 7.0% (vs Virginia 10.1%) |
| White (non-Hispanic) population | 78.1% (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 (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 1.6% are foreign-born — below the U.S. average of 13.9%. 2% have naturalized to U.S. citizenship.
| Residents born in this state | 4,816 |
|---|---|
| Residents born in another state | 5,511 |
| Share born in this state | 45.2% |
| Share born in another state | 54.8% |
| Native-born U.S. citizens | 51.7% |
| Foreign-born residents | 1.6% |
| Naturalized citizens | 1.5% |
| Total foreign-born residents | 335 |
| From Europe | 93 |
| From Africa | 33 |
Households & Family Composition
4,258 households. Averaging 2.5 people each — matches the U.S. average of 2.5. 76% are family households — above the U.S. share of ~65%. Of 3,287 families, 27% are married couples with children.
| Children under 18 | 2,375 |
|---|---|
| Total families | 3,287 |
| Married couples with children | 883 |
| Single-parent households | 42 |
| Average household size | 2.55 |
| Women who gave birth (past year) | 10.0% |
| Grandparents living with grandchildren | 614 |
| Grandparents responsible for grandchildren | 263 |
| Family households | 3,259 households (vs Virginia 9,367) |
| Households that are families | 76.5% (vs Virginia 65.0%) |
| Total households | 4,258 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. 12.7% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 247 residents per year on net (IRS migration data).
| Moved within the county (past year) | 12.7% |
|---|---|
| Migration · People moving in (annual) | 27,406 |
| Migration · People moving out (annual) | 27,159 |
| Migration · Net migration (in − out) | 247 |
| 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 | 831 |
|---|---|
| Disability rate | 7.7% |
Other
| Congressional District · District | 5 |
|---|---|
| Congressional District · Formatted | VA-05 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 51065 |
| Cdc Birth Rate · State Fips | 51 |
| Cdc Birth Rate · County Fips | 065 |
| Cdc Birth Rate · County | Fluvanna |
| Cdc Birth Rate · Birth Rate | 11.0% |
| Cdc Birth Rate · Lower Ci | 8.10 |
| Cdc Birth Rate · Upper Ci | 14.50 |
| Cdc Mortality · Fips | 51065 |
| Cdc Mortality · County | Fluvanna County |
| Cdc Mortality · Urban Rural | Small metro |
| Cdc Mortality · Total Deaths 2020 2023 | 500 |
| Cdc Vaccination · Fips | 51065 |
| Cdc Vaccination · County | Fluvanna County |
| Cdc Vaccination · Dose1 Pop Pct | 75.2% |
| Cdc Vaccination · Series Complete Pct | 65.0% |
| Cdc Vaccination · Booster Pct | 51.0% |
| Cdc Vaccination · Population 2019 | 27,270 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 4.00 |
| Family Score · Schools | 6 |
| Family Score · Children Pct | 21.1% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 10,662, declining, established, affluent, white collar |
| Town Summary · Population | 10,662 people (vs Virginia 42,214) |
| Town Summary · County | Fluvanna County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade