Residential delivery area · Texas
ZIP Code 78633: Georgetown, TX
ZIP code 78633 uses the postal name Georgetown, Texas and lies entirely in Williamson County (Census 2020 ZIP-county file). About 29,000 people live there (Census Bureau, ACS 2020-2024), the least populous of Georgetown's 3 residential ZIP codes. Median household income is $100,936 (Census Bureau, ACS 2020-2024). By Census place, 22% of its land lies in Georgetown, and 1% in smaller places; 77% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Georgetown · 3 residential ZIPs
- County
- Williamson County
- Census places
- Georgetown
- Metro area
- Austin-Round Rock-San Marcos, TX
- House district
- TX-31 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 78.5 sq mi · 374 people per sq mi
- PO Box ZIPs
- 78627 also use the name Georgetown
Where is ZIP code 78633?
78633 centers on 30.735°, -97.755° and covers 78.5 square miles of land plus 1.3 of water. It borders 5 ZIP codes: 78628, 76527, 78626, 76537, 78642.
The map draws ZIP code areas only. For the streets inside 78633, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 78633 compare with the rest of Georgetown?
| Measure | 78633 | In Georgetown | In Williamson County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 29,309 | 3rd of 3 | 14th of 27 | 402nd of 1,990 |
| Median household income | $101k | 2nd of 3 | 13th of 22 | 234th of 1,172 |
| Median home value | $465k | 2nd of 3 | 12th of 24 | 134th of 1,172 |
Its median household income is higher than in 82% of U.S. residential ZIP codes, and it is denser than 69% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 78633?
The 2020 Census counted 27,736 people in 78633; the ACS, which samples households over 2020-2024, estimates 29,309. Between the 2010 and 2020 censuses its population grew 43.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 29,309
- 2020 Census count
- 27,736+43.3% since 2010 (19,349)
- Households
- 14,245
- Median age
- 67.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 78633?
Of the 29,309 people the ACS estimates in 78633, 9.1% are under 18 and 55.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.8%).
- Under 189.1%
- 18 to 6435.9%
- 65 and older55.0%
- White, not Hispanic86.8%
- Hispanic or Latino6.8%
- Other or two or more3.3%
- Asian, not Hispanic2.3%
- Black, not Hispanic0.8%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 78633 earn?
Median household income is $100,936 (ACS 2020-2024), the 13th highest of the 22 ranked ZIP codes in Williamson County. It is not measurably different from 2015-2019 ($98,303 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $100,936
- Income per person
- $69,806
- Below the poverty line
- 4.2%
- Unemployed (of the labor force)
- 3.6%
- Adults 25+ with a bachelor's degree
- 55.9%
- Adjusted gross income per tax return, 2022
- $140,21016,860 returns; wages 36% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 78633?
FHFA's house price index for 78633, built from repeat sales and appraisals of the same homes, rose 91% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved −0.9% in 2025.
- Median home value (owners' estimate)
- $464,600
- Median gross rent
- $1,998
- Homes owned by their occupants
- 91.7%
- Housing units
- 14,787
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 78633?
372 business establishments had a location in this ZIP code in 2023, 81 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction69
- Professional, scientific, and technical services59
- Health care and social assistance48
- Other services (except public administration)29
- Real estate and rental and leasing24
- Finance and insurance23
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 78633?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78628 | Georgetown | 50,822 | $126k | 5.1 mi |
| 76527 | Florence | 4,918 | $82k | 7.4 mi |
| 78626 | Georgetown | 48,072 | $100k | 9.8 mi |
| 76537 | Jarrell | 16,272 | $98k | 10.7 mi |
| 78642 | Liberty Hill | 26,434 | $133k | 11.3 mi |
| 78674 | Weir | 108 | – | 10.3 mi (near) |
| 78681 | Round Rock | 56,691 | $138k | 13.6 mi (near) |
| 78665 | Round Rock | 66,171 | $123k | 14.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.