St. Jo: Demographics & People
St. Jo is home to 911 people, in 360 households. Population grew 4.0% from 876 (2022) to 911 (2024). Median age 34.9 years. (9.3y younger than Montague County; 1.0y younger than Texas). Children under 18 are 35% of the population. Population is 91% White (non-Hispanic) and 5% Hispanic or Latino. 61% of households are family-led. County is gaining 838 residents per year (2022-2023). County health: 37% adult obesity, 17% smoke.
- 2.5 people per household.
- 39% non-family households (singles, roommates).
Population & Trend
Population grew 4.0% from 876 (2022) to 911 (2024) — about 6.7× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~947 (extrapolated at 2.0%/yr trend). Census Bureau Vintage estimate: 998.
| Census data vintage | 2024 |
|---|---|
| Population | 19,965 people |
| Annual growth rate · Population change | 4.0% |
| Annual growth rate · Population (2022) | 876 |
| Annual growth rate · Population (2024) | 911 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 911 people |
| Population Estimate | 998 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 34.9y is 4.0 years younger than the U.S. median (38.9y). Children under 18 make up 35% — above the U.S. share of ~22%.
| Age Summary · Median age | 34.9 years (vs Texas 35.9y) |
|---|---|
| Age Summary · Children Pct | 34.8% |
| Age Summary · Character | young professional |
| Population under 18 | 317 |
| Median age | 34.9 years (vs Texas 35.9y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 911 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 842 |
|---|---|
| Hispanic or Latino residents | 45 |
| Diversity Index · Simpson Index | 14.3% |
| Diversity Index · Interpretation | less diverse |
| Hispanic or Latino population | 5.2% |
| White (non-Hispanic) population | 91.1% |
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 | 673 |
|---|---|
| Residents born in another state | 229 |
| Share born in this state | 73.9% |
| Share born in another state | 26.1% |
| Native-born U.S. citizens | 25.1% |
| Naturalized citizens | 1.0% |
| Total foreign-born residents | 11 |
| From Europe | 8 |
Households & Family Composition
360 households. Averaging 2.7 people each — larger than the U.S. average of 2.5. 61% are family households — below the U.S. share of ~65%. Of 202 families, 43% are married couples with children.
| Children under 18 | 342 |
|---|---|
| Total families | 202 |
| Married couples with children | 86 |
| Single-parent households | 20 |
| Average household size | 2.66 |
| Women who gave birth (past year) | 17.5% |
| Grandparents living with grandchildren | 35 |
| Family households | 218 households |
| Households that are families | 60.6% |
| Total households | 360 households |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 3.7% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 838 residents per year on net (IRS migration data).
| Moved within the county (past year) | 3.7% |
|---|---|
| Migration · People moving in (annual) | 20,269 |
| Migration · People moving out (annual) | 19,431 |
| Migration · Net migration (in − out) | 838 |
| 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 | 46 |
|---|---|
| Disability rate | 5.1% |
Other
| Congressional District · District | 13 |
|---|---|
| Congressional District · Formatted | TX-13 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 48,337 |
| Cdc Birth Rate · State Fips | 48 |
| Cdc Birth Rate · County Fips | 337 |
| Cdc Birth Rate · County | Montague |
| Cdc Birth Rate · Birth Rate | 24.7% |
| Cdc Birth Rate · Lower Ci | 19.50 |
| Cdc Birth Rate · Upper Ci | 30.90 |
| Cdc Mortality · Fips | 48,337 |
| Cdc Mortality · County | Montague County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 831 |
| Cdc Vaccination · Fips | 48,337 |
| Cdc Vaccination · County | Montague County |
| Cdc Vaccination · Dose1 Pop Pct | 41.6% |
| Cdc Vaccination · Series Complete Pct | 35.6% |
| Cdc Vaccination · Booster Pct | 40.5% |
| Cdc Vaccination · Population 2019 | 19,818 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 6.50 |
| Family Score · Schools | 11 |
| Family Score · Children Pct | 34.8% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 911, growing, young professional, middle-class, mixed |
| Town Summary · Population | 911 people |
| Town Summary · County | Montague County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade