Austin-Round Rock-Georgetown, TX · Texas
Williamson County
ZIP 78615
643,889 residents5,034 permits TTM$108,309 median HHI19 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$414,600
ACS 5-Year
Cap rate proxy
5.0%
FMR × 0.65 ÷ Home Value
Rent-to-income
19.1%
HUD FMR ÷ ACS HHI
Net migration
+4.39%
IRS SOI
Permits (TTM)
5,034
Census BPS
Climate risk
90.1
FEMA NRI (0–100)
ZIP 78615
Median home value
—
Gross yield
—
Buy Box score
0.9
Section 8 gap
—
Affordability
P/I: 5.1R/I: —
Section 8 detail
SAFMR: —Rent: —Gap: —
ZIP code breakdown19 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate ↓ | Rent gap |
|---|---|---|---|---|---|
| 76537 | — | — | — | 7.9% | — |
| 76574 | — | — | — | 7.6% | — |
| 76530 | — | — | — | 6.7% | — |
| 76578 | — | — | — | 5.7% | — |
| 78634 | — | — | — | 5.7% | — |
| 78664 | — | — | — | 5.5% | — |
| 78642 | — | — | — | 5.5% | — |
| 78626 | — | — | — | 5.2% | — |
| 76573 | — | — | — | 5.0% | — |
| 78674 | — | — | — | 5.0% | — |
| 78665 | — | — | — | 4.6% | — |
| 78633 | — | — | — | 4.6% | — |
| 78628 | — | — | — | 4.4% | — |
| 78681 | — | — | — | 4.0% | — |
| 76527 | — | — | — | 3.9% | — |
| 78613 | — | — | — | 3.8% | — |
| 78615 | — | — | — | 3.7% | — |
| 78729 | — | — | — | 3.7% | — |
| 78717 | — | — | — | 3.2% | — |
Sort by any column. Click a ZIP for detail. Rent gap: green = HUD FMR above market rent.
Demographics
Owner-occupied
67.1%
Census ACS
Vacancy rate
3.9%
Census ACS
Bachelor's degree +
47.4%
Census ACS
Rent burdened
46.1%
Census ACS (>30% income)
Median age
37.2
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026