St. David: Demographics & People
1,098 people call St. David home, in 399 households. Population shrank 1.3% from 1,112 (2022) to 1,098 (2024). Median age 39.7 years. (3.3y younger than Cochise County). Children under 18 are 36% of the population. Population is 74% White (non-Hispanic) and 2% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.03). 63% of households are family-led. County is gaining 901 residents per year (2022-2023). County health: 33% adult obesity, 15% smoke.
- 2.8 people per household.
- 37% non-family households (singles, roommates).
Population & Trend
Population shrank 1.3% from 1,112 (2022) to 1,098 (2024). Estimated 2026 population: ~1,084 (extrapolated at -0.6%/yr trend). Census Bureau Vintage estimate: 1,065.
| Census data vintage | 2024 |
|---|---|
| Population | 125,447 people |
| Annual growth rate · Population change | -1.3% |
| Annual growth rate · Population (2022) | 1,112 |
| Annual growth rate · Population (2024) | 1,098 |
| Annual growth rate · Trend category | declining |
| Population | 1,098 people |
| Population Estimate | 1,065 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.7y is 0.8 years older than the U.S. median (38.9y). Children under 18 make up 36% — above the U.S. share of ~22%.
| Age Summary · Median age | 39.7 years (vs Arizona 39.3y) |
|---|---|
| Age Summary · Children Pct | 36.2% |
| Age Summary · Character | family-oriented |
| Population under 18 | 397 |
| Median age | 39.7 years (vs Arizona 39.3y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 1,098 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.03 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 818 |
|---|---|
| Hispanic or Latino residents | 12 |
| Diversity Index · Diversity index (Simpson) | 2.9% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 98.6% |
| Hispanic or Latino population | 1.9% |
| White (non-Hispanic) population | 74.0% |
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 | 641 |
|---|---|
| Residents born in another state | 432 |
| Share born in this state | 58.4% |
| Share born in another state | 41.6% |
| Native-born U.S. citizens | 39.3% |
| Naturalized citizens | 2.3% |
| Total foreign-born residents | 10 |
Households & Family Composition
399 households. Averaging 2.6 people each — matches the U.S. average of 2.5. 63% are family households — near the U.S. share of ~65%. Of 249 families, 29% are married couples with children.
| Children under 18 | 370 |
|---|---|
| Total families | 249 |
| Married couples with children | 71 |
| Single-parent households | 28 |
| Average household size | 2.59 |
| Women who gave birth (past year) | 16.8% |
| Grandparents living with grandchildren | 49 |
| Grandparents responsible for grandchildren | 26 |
| Family households | 252 households |
| Households that are families | 63.2% |
| Total households | 399 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. 23.0% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 901 residents per year on net (IRS migration data).
| Moved within the county (past year) | 23.0% |
|---|---|
| Migration · People moving in (annual) | 118,516 |
| Migration · People moving out (annual) | 117,615 |
| Migration · Net migration (in − out) | 901 |
| 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 | 157 |
|---|---|
| Disability rate | 12.1% |
Other
| Congressional District · District | 6 |
|---|---|
| Congressional District · Formatted | AZ-06 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 4,003 |
| Cdc Birth Rate · State Fips | 4 |
| Cdc Birth Rate · County Fips | 3 |
| Cdc Birth Rate · County | Cochise |
| Cdc Birth Rate · Birth Rate | 26.0% |
| Cdc Birth Rate · Lower Ci | 23.50 |
| Cdc Birth Rate · Upper Ci | 28.70 |
| Cdc Mortality · Fips | 4,003 |
| Cdc Mortality · County | Cochise County |
| Cdc Mortality · Urban Rural | Small metro |
| Cdc Mortality · Total Deaths 2020 2023 | 4,205 |
| Cdc Vaccination · Fips | 4,003 |
| Cdc Vaccination · County | Cochise County |
| Cdc Vaccination · Dose1 Pop Pct | 87.2% |
| Cdc Vaccination · Series Complete Pct | 71.6% |
| Cdc Vaccination · Booster Pct | 48.2% |
| Cdc Vaccination · Population 2019 | 125,922 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 36.2% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 1,098, declining, family-oriented, middle-class, white collar |
| Town Summary · Population | 1,098 people |
| Town Summary · County | Cochise County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade