Census Tract 109.12
Open-data reference.
Hays County, Texas · San Marcos GEOID: 48209010912
Tract Snapshot: Census Tract 109.12, Hays County, TX
Census Tract 109.12 is located in Hays County, Texas, inside the municipal boundary of San Marcos, and contains a population of approximately 8,887 residents per Census ACS 2023 five-year estimates. Median household income here is $160,972 — a figure the Census Bureau classifies as "High Income Area" when compared with the 2023 national median near $77,000. Rent data is not published for this tract in the current ACS release. Typical owner-occupied homes are valued around $707,000. The tract's poverty rate is 3.6%, measured as the share of residents with income below the federal poverty threshold.
Census tracts are small, relatively permanent statistical subdivisions of a county designed by the U.S. Census Bureau to contain roughly 1,200 to 8,000 residents, with boundaries held stable across decades so researchers can track neighborhoods over time. Tract-level figures from the American Community Survey are five-year rolling averages rather than snapshots — that smoothing reduces year-to-year noise in small areas but also means the numbers you see here describe the period ending in the reference year rather than a single moment. For context, we link back to the parent city and state pages where you can compare this tract against its neighbors.
Source: U.S. Census Bureau — American Community Survey 5-Year 2023 · GEOID: 48209010912 · Note: ACS margins of error widen at tract level
Location
- Census Tract
- Tract 109.12
- GEOID (FIPS)
- 48209010912
- County
- Hays County
- State
- Texas
- Nearest City
- San Marcos
- Coordinates
- 30.132534, -97.927691
Income & Housing
Census ACS 5-Year 2023 estimates for this tract
| Metric | Value | Context | Source |
|---|---|---|---|
| Median Household Income | $160,972 | High Income Area vs. US ~$77,000 | ACS 2023 5-Year |
| Median Home Value | $707,000 | Owner-occupied units only | ACS 2023 5-Year |
| Poverty Rate | 3.6% | Below federal poverty threshold | ACS 2023 5-Year |
Explore More Data for San Marcos, TX
What do people ask about San Marcos, TX?
What is the population of Census Tract 109.12? +
Census Tract 109.12 in Hays County, Texas has a population of approximately 8,887, based on U.S. Census Bureau ACS 2023 estimates.
What is the median household income in Census Tract 109.12? +
The median household income in Census Tract 109.12 (Hays County, TX) is $160,972, based on ACS 5-Year 2023 data. This is considered "High Income Area" relative to the national median of approximately $77,000.
What is the poverty rate in Census Tract 109.12? +
Approximately 3.6% of residents in Census Tract 109.12 have income below the federal poverty threshold, based on Census ACS 2023 data.
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- How to Read Census Data — Understand margins of error and ACS estimates
Source: U.S. Census Bureau ACS 5-Year Estimates 2023. Census tract boundaries and GEOID from 2023 TIGER/Line files. Population and income data may reflect margins of error for smaller tracts. Last updated: 2026 U.S. Census Bureau ACS 5-Year Estimates 2023. Census tract boundaries and GEOID from 2023 TIGER/Line files. Population and income data may reflect margins of error for smaller tracts. Last updated: 2026
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Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau ACS. Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.