ZIP 78663
ZIP code lookup
Type a ZIP code to see its county, U.S. House district, members of Congress, people, income and taxes, and federal money spent nearby.
ZIP 78663, Texas
- County: Blanco County (93% of land); Travis County (4% of land); Hays County (2% of land); Burnet County (1% of land)
- U.S. House district: TX-21 (95% of land); TX-10 (4% of land); TX-31 (1% of land)
- People: population 503; households 276; median household income $168,125
- Taxes: 460 returns; adjusted gross income $65.8 million; wages $26.1 million; total tax $11.1 million
- Donations: $62,711 in 141 itemized individual contributions (2025-26)
Members of Congress
| Member | Chamber | District | Party | Raised 2025-26 |
|---|---|---|---|---|
| John Cornyn | Senate | Republican | $8.6 million | |
| Ted Cruz | Senate | Republican | $12.4 million | |
| Chip Roy | House | District 21 | Republican | $783,177 |
| Michael T. McCaul | House | District 10 | Republican | $276,976 |
| John R. Carter | House | District 31 | Republican | $1.5 million |
Federal money spent nearby (FY 2026)
| Place | Federal obligations |
|---|---|
| Blanco County (county) | $139.2 million |
| Travis County (county) | $20.3 billion |
| Hays County (county) | $1.5 billion |
| Burnet County (county) | $440.8 million |
| TX-21 (district) | $5.0 billion |
| TX-10 (district) | $2.8 billion |
| TX-31 (district) | $5.3 billion |
Source: Census 2020 ZCTA to county relationship file (ZIP to county crosswalk) (fetched Nov 4, 2026 9:32 AM CST); Census 119th Congress district to ZCTA relationship file (ZIP to district crosswalk) (fetched Nov 4, 2026 9:32 AM CST); Census ACS 5-year 2020-2024 summary file (population B01003, households B11001, median household income B19013) for states, counties, districts, ZCTAs; bulk files because the Census API now requires a key (fetched Nov 4, 2026 9:31 AM CST); IRS SOI individual income tax ZIP code data, tax year 2023: returns, AGI, wages, tax (fetched Nov 4, 2026 9:31 AM CST); USAspending spending_by_geography: contracts, grants, direct payments, loans, other by state, county and congressional district (latest fiscal year, no key) (fetched Nov 14, 2026 3:36 AM CST); Current members of Congress (unitedstates/congress-legislators JSON): district, chamber, party, term, bioguide id, FEC ids, links (fetched Nov 4, 2026 9:15 AM CST); FEC bulk all-candidates summary (receipts, disbursements, cash on hand), 2025-2026 cycle (fetched Nov 15, 2026 3:44 AM CST); FEC bulk individual contributions 2025-2026 (about 2.4 GB zip, cached); only state and ZIP totals are kept (fetched Nov 14, 2026 3:36 AM CST).