78633 ZIP Code, Georgetown, TX
78633 is a ZIP code in Georgetown, Texas in Williamson County. It covers 78 square miles of land, centered about 32 miles north of downtown Austin. The closest ZIP codes are 78628, 76527 and 78626. 29,309 people live here in 14,245 households. With about 374 people per square mile it is lightly settled, and most homes are owner-occupied (92%). Median household income is $100,936, above the Texas median of $78,476; the median age is 67.3, older than most ZIP codes.
Quick facts
- Mailing city: Georgetown, TX
- County: Williamson County
- Metro area: Austin
- Land area: 78 sq mi
- Population: 29,309
- Median household income: $100,936
- Carrier routes: 28 (18,369 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 29,309 |
| Households | 14,245 |
| Median household income | $100,936 |
| Income per person | $69,806 |
| Median age | 67.3 |
| Homeowners | 91.7% |
| Median home value | $464,600 |
| Median rent | $1,998 |
| Bachelor's degree or higher | 55.9% |
| Average commute (minutes) | 33.2 |
| Households with kids under 18 | 10.2% |
| Moved in the past year | 12.0% |
| Below the poverty line | 4.2% |
| Broadband internet | 96.2% |
| Speak a non-English language at home | 5.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.9% |
| $10–15K | 1.4% |
| $15–25K | 4.6% |
| $25–35K | 4.8% |
| $35–50K | 6.8% |
| $50–75K | 14.5% |
| $75–100K | 15.1% |
| $100–150K | 20.4% |
| $150–200K | 14.1% |
| $200K+ | 16.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 5.5% |
| 10–19 | 4.8% |
| 20–24 | 1.8% |
| 25–34 | 4.1% |
| 35–44 | 6.5% |
| 45–54 | 7.3% |
| 55–64 | 15.0% |
| 65–74 | 26.6% |
| 75+ | 28.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 42.3% |
| Owned outright | 46.1% |
| Rented | 7.9% |
| Vacant | 3.6% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 92.6% |
| Townhome | 3.1% |
| 2–4 units | 0.9% |
| 5–19 units | 0.7% |
| 20+ units | 2.1% |
| Mobile / other | 0.6% |
Businesses in 78633
372 business establishments with 3,288 employees (ZIP Codes Business Patterns 2023).
- Construction: 69
- Professional, Scientific, and Technical Services: 59
- Health Care and Social Assistance: 48
- Other Services (except Public Administration): 29
- Real Estate and Rental and Leasing: 24
- Finance and Insurance: 23
- Administrative and Support and Waste Management and Remediation Services: 20
- Retail Trade: 17
EDDM carrier routes
78633 has 28 USPS carrier routes with 18,369 residential and 346 business mailboxes. Open the EDDM route map.
Carrier routes in 78633
78633 has 28 USPS carrier routes (28 rural (R)) with 18,369 residential and 346 business mailboxes. Routes range from 476 homes (R045) to 1,313 homes (R075); the median route has 554 homes. The Census counted 14,245 households in 78633 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 2 |
| 500–749 | 18 |
| 750–999 | 7 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 78633 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R026 — Est. median household income $150,220, 553 homes
- Route R005 — Est. median household income $138,703, 502 homes
- Route R022 — Est. median household income $137,960, 549 homes
- Route R046 — Est. median household income $137,648, 840 homes
- Route R015 — Est. median household income $135,008, 552 homes
Select these 5 routes on the route map
Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers
Most families with kids
For tutoring, youth sports, pediatric dental, child care and family dining.
- Route R005 — Est. families with children under 18 39.5%, 502 homes
- Route R046 — Est. families with children under 18 33.5%, 840 homes
- Route R015 — Est. families with children under 18 31.1%, 552 homes
- Route R041 — Est. families with children under 18 30.7%, 937 homes
- Route R056 — Est. families with children under 18 27.9%, 921 homes
Select these 5 routes on the route map
Often mailed by: Dental practice EDDM, Healthcare and clinic mailers
Most homeowners
Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.
- Route R049 — Est. owner-occupied homes 98.1%, 616 homes
- Route R005 — Est. owner-occupied homes 97.6%, 502 homes
- Route R036 — Est. owner-occupied homes 97.5%, 672 homes
- Route R035 — Est. owner-occupied homes 97.3%, 483 homes
- Route R024 — Est. owner-occupied homes 96.8%, 525 homes
Select these 5 routes on the route map
Often mailed by: Roofing direct mail, HVAC postcards
Most new movers
New residents are still choosing a dentist, a gym and a lawn service.
- Route R015 — Est. residents who moved in the past year 20.0%, 552 homes
- Route R075 — Est. residents who moved in the past year 18.9%, 1,313 homes
- Route R057 — Est. residents who moved in the past year 17.7%, 953 homes
- Route R046 — Est. residents who moved in the past year 17.1%, 840 homes
- Route R053 — Est. residents who moved in the past year 16.8%, 886 homes
Select these 5 routes on the route map
Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers
Newest homes
Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.
- Route R045 — Est. homes built 2010 or later 78.3%, 476 homes
- Route R039 — Est. homes built 2010 or later 74.4%, 515 homes
- Route R037 — Est. homes built 2010 or later 73.1%, 547 homes
- Route R033 — Est. homes built 2010 or later 72.7%, 531 homes
- Route R053 — Est. homes built 2010 or later 71.0%, 886 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R031 — USPS business mailboxes 133, 570 homes
- Route R075 — USPS business mailboxes 46, 1,313 homes
- Route R041 — USPS business mailboxes 41, 937 homes
- Route R046 — USPS business mailboxes 29, 840 homes
- Route R056 — USPS business mailboxes 24, 921 homes
Select these 5 routes on the route map
Every carrier route in 78633
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R005 | Rural | 502 | 17 | $138,703 | 97.6% | 39.5% | 4.6% |
| R015 | Rural | 552 | 2 | $135,008 | 96.7% | 31.1% | 20.0% |
| R018 | Rural | 540 | 0 | $71,346 | 86.4% | 0.0% | 15.0% |
| R019 | Rural | 750 | 1 | $85,214 | 81.7% | 1.2% | 13.3% |
| R020 | Rural | 504 | 0 | $59,626 | 94.3% | 0.0% | 13.3% |
| R021 | Rural | 519 | 1 | $70,530 | 95.1% | 0.0% | 12.6% |
| R022 | Rural | 549 | 16 | $137,960 | 92.6% | 13.5% | 8.9% |
| R023 | Rural | 614 | 3 | $73,778 | 90.2% | 1.7% | 10.4% |
| R024 | Rural | 525 | 1 | $86,079 | 96.8% | 0.0% | 8.8% |
| R026 | Rural | 553 | 0 | $150,220 | 94.4% | 15.2% | 9.1% |
| R031 | Rural | 570 | 133 | $126,979 | 84.1% | 14.1% | 13.1% |
| R033 | Rural | 531 | 3 | $105,177 | 95.2% | 8.4% | 11.9% |
| R034 | Rural | 521 | 0 | $72,943 | 90.6% | 2.5% | 10.4% |
| R035 | Rural | 483 | 2 | $90,594 | 97.3% | 3.3% | 6.8% |
| R036 | Rural | 672 | 0 | $96,692 | 97.5% | 4.8% | 9.8% |
| R037 | Rural | 547 | 1 | $90,538 | 95.4% | 4.6% | 5.7% |
| R039 | Rural | 515 | 0 | $102,352 | 95.2% | 3.5% | 6.1% |
| R041 | Rural | 937 | 41 | $115,661 | 87.5% | 30.7% | 7.2% |
| R045 | Rural | 476 | 0 | $112,799 | 94.7% | 0.2% | 7.2% |
| R046 | Rural | 840 | 29 | $137,648 | 96.6% | 33.5% | 17.1% |
| R049 | Rural | 616 | 1 | $96,693 | 98.1% | 0.0% | 10.2% |
| R053 | Rural | 886 | 2 | $104,420 | 95.8% | 12.4% | 16.8% |
| R054 | Rural | 555 | 21 | $79,195 | 86.0% | 0.4% | 12.0% |
| R055 | Rural | 841 | 2 | $133,565 | 86.0% | 14.7% | 11.7% |
| R056 | Rural | 921 | 24 | $114,641 | 83.7% | 27.9% | 14.2% |
| R057 | Rural | 953 | 0 | $103,063 | 95.5% | 11.6% | 17.7% |
| R059 | Rural | 584 | 0 | $102,839 | 91.8% | 1.4% | 7.7% |
| R075 | Rural | 1,313 | 46 | $104,468 | 91.4% | 16.6% | 18.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78633 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 78628 — Georgetown city, TX (5.1 mi)
- 76527 — Florence city, TX (7.4 mi)
- 78626 — Georgetown city, TX (9.8 mi)
- 78674 — Weir city, TX (10.3 mi)
- 76537 — Jarrell city, TX (10.7 mi)
- 78642 — Liberty Hill city, TX (11.3 mi)
- 78681 — Round Rock city, TX (13.6 mi)
- 78665 — Round Rock city, TX (14.7 mi)
Areas that include 78633
- Georgetown, TX ZIP codes — 3 ZIP codes
- Jarrell, TX ZIP codes — 2 ZIP codes
- Serenada, TX ZIP codes — 2 ZIP codes
- Williamson County ZIP codes — 24 ZIP codes
- Austin ZIP code map — 89 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 6 of 83: highest share of owner-occupied homes in the Austin area
- No. 1 of 83: highest median age in the Austin area
- No. 1 of 22: highest share of owner-occupied homes in Williamson County
- No. 1 of 22: highest median age in Williamson County
Mail every home in 78633
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78633, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78633 in?
- 78633 is a Georgetown, TX mailing address. By land area, 22% lies inside Georgetown; the rest is outside any Census-defined city or community.
- What county is 78633 in?
- 78633 is in Williamson County.
- What is the population of 78633?
- About 29,309 people (±1,761), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 27,736.
- What is the median household income in 78633?
- $100,936 (±$4,449), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 78633?
- 28 USPS carrier routes with 18,369 residential and 346 business mailboxes (18,717 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78633?
- The closest, measured center to center: 78628 (5.1 mi, Georgetown), 76527 (7.4 mi, Florence), 78626 (9.8 mi, Georgetown), 78674 (10.3 mi, Weir), 76537 (10.7 mi, Jarrell) and 78642 (11.3 mi, Liberty Hill).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.