St. Leo: Demographics & People
St. Leo's population stands at 1,985 people, in 42 households. Population shrank 21.3% from 2,523 (2022) to 1,985 (2024). Median age 19.9 years. (23.5y younger than Pasco County; 22.7y younger than Florida). Children under 18 are 2% of the population. Population is 52% White (non-Hispanic) and 26% Black. The community is moderately diverse (Simpson index 0.58). 90% of households are family-led. County is gaining 55,039 residents per year (2022-2023). County health: 35% adult obesity, 14% smoke.
- 47.3 people per household (vs Florida avg 2.6).
- 10% non-family households (singles, roommates) (vs Florida 35%).
Population & Trend
Population shrank 21.3% from 2,523 (2022) to 1,985 (2024). Estimated 2026 population: ~1,584 (extrapolated at -10.7%/yr trend). Census Bureau Vintage estimate: 1,134.
| Census data vintage | 2024 |
|---|---|
| Population | 561,891 people |
| Annual growth rate · Population change | -21.3% |
| Annual growth rate · Population (2022) | 2,523 |
| Annual growth rate · Population (2024) | 1,985 |
| Annual growth rate · Trend category | shrinking |
| Population | 1,985 people (vs Florida 58,838) |
| Population Estimate | 1,134 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 19.9y is 19.0 years younger than the U.S. median (38.9y). Children under 18 make up 2% — below the U.S. share of ~22%.
| Age Summary · Median age | 19.9 years (vs Florida 40.9y) |
|---|---|
| Age Summary · Children Pct | 1.6% |
| Age Summary · Character | young community |
| Population under 18 | 32 |
| Median age | 19.9 years (vs Florida 40.9y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 1,985 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.58 (0 = single group, 1 = perfectly even distribution); this is read as moderately diverse.
| White residents | 1,581 |
|---|---|
| Black residents | 615 |
| Asian residents | 71 |
| Hispanic or Latino residents | 446 |
| Diversity Index · Diversity index (Simpson) | 58.1% |
| Diversity Index · Diversity label | moderately diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 58.3% |
| Asian population | 3.6% (vs Florida 2.5%) |
| Black population | 26.2% (vs Florida 13.0%) |
| Hispanic or Latino population | 15.1% (vs Florida 23.4%) |
| White (non-Hispanic) population | 51.9% (vs Florida 46.8%) |
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). 6.8% are foreign-born — below the U.S. average of 13.9%. 19% have naturalized to U.S. citizenship.
| Residents born in this state | 954 |
|---|---|
| Residents born in another state | 521 |
| Share born in this state | 48.1% |
| Share born in another state | 51.9% |
| Native-born U.S. citizens | 26.2% |
| Foreign-born residents | 6.8% |
| Naturalized citizens | 18.9% |
| Total foreign-born residents | 440 |
| From Europe | 18 |
| From Africa | 92 |
Households & Family Composition
42 households. Averaging 3.0 people each — larger than the U.S. average of 2.5. 90% are family households — above the U.S. share of ~65%. Of 192 families, 30% are married couples with children.
| Children under 18 | 179 |
|---|---|
| Total families | 192 |
| Married couples with children | 57 |
| Average household size | 2.98 |
| Women who gave birth (past year) | 0.4% |
| Grandparents living with grandchildren | 2 |
| Grandparents responsible for grandchildren | 2 |
| Family households | 38 households (vs Florida 15,074) |
| Households that are families | 90.5% (vs Florida 64.6%) |
| Total households | 42 households (vs Florida 22,144) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 25.1% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 55,039 residents per year on net (IRS migration data).
| Moved within the county (past year) | 25.1% |
|---|---|
| Migration · People moving in (annual) | 610,180 |
| Migration · People moving out (annual) | 555,141 |
| Migration · Net migration (in − out) | 55,039 |
| 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 | 108 |
|---|---|
| Disability rate | 4.5% |
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. 1,860 residents live in group quarters (93.7% of population).
| Living in group quarters | 1,860 |
|---|
Other
| Congressional District · District | 12 |
|---|---|
| Congressional District · Formatted | FL-12 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 12,101 |
| Cdc Birth Rate · State Fips | 12 |
| Cdc Birth Rate · County Fips | 101 |
| Cdc Birth Rate · County | Pasco |
| Cdc Birth Rate · Birth Rate | 15.7% |
| Cdc Birth Rate · Lower Ci | 14.70 |
| Cdc Birth Rate · Upper Ci | 16.80 |
| Cdc Mortality · Fips | 12,101 |
| Cdc Mortality · County | Pasco County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 25,104 |
| Cdc Vaccination · Fips | 12,101 |
| Cdc Vaccination · County | Pasco County |
| Cdc Vaccination · Dose1 Pop Pct | 70.5% |
| Cdc Vaccination · Series Complete Pct | 61.4% |
| Cdc Vaccination · Booster Pct | 46.6% |
| Cdc Vaccination · Population 2019 | 553,947 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 1.6% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 1,985, shrinking, young community, upper-middle, service economy |
| Town Summary · Population | 1,985 people (vs Florida 58,838) |
| Town Summary · County | Pasco County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade