Photo: Larry D. Moore · CC BY 4.0Living in Round Rock, TX: what to set up and who to call
The City of Round Rock water system has a clean five-year EPA record, but its latest lead result, 5.0 ppb, was higher than 91% of similar systems’ (the action level is 15). Round Rock runs its own drop-off at 310 Deep Wood Drive; OpenStreetMap lists it open Mon–Sat 9:30 am–6 pm.
I’m new in town
What to set up in Round Rock, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Round Rock.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves 99.0% of Round Rock residents.
Start or move service: oncor.com · (888) 875-6279
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Round Rock water system
The City of Round Rock water system supplies almost all of Round Rock. It draws surface water (EPA lists City of Austin Water & Wastewater and City of Georgetown and Brushy Creek Regional Utility Authority as sellers) and serves 130,662 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 86% of the 332 systems serving 100,001–250,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, was 5.0 ppb, below the 15 ppb action level that applied. That’s higher than 91% of similar systems’ latest results.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. TX2460003.
9 home internet providers serve Round Rock
98% of 34,164 addresses can get 100/20 Mbps; 83% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 98% | 1,000/35 |
| AT&T | Fiber, DSL, Fixed wireless | 94% | 5,000/5,000 |
| Google Fiber | Fiber | 63% | 8,000/8,000 |
| Verizon | Fixed wireless | 89% | 300/20 |
| T-Mobile | Fixed wireless | 52% | 100/20 |
| SOS Communications | Fixed wireless | 19% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Curbside recycling in Round Rock: every other week
Pickup days, the drop-off and recycling in Round Rock, from the town’s own site.
Round Rock Recycling Center
310 Deepwood Drive, Round Rock, TX 78681
- Mon9:30 am–6 pm
- Tue9:30 am–6 pm
- Wed9:30 am–6 pm
- Thu9:30 am–6 pm
- Fri9:30 am–6 pm
- Sat9:30 am–6 pm
Accepted at the curb
- Aluminum foil
- Beverage cans and caps
- Foil baking tins
- Pet food cans
- Soup and vegetable cans
- Beverage packaging
- Cardboard egg cartons
- Food boxes (cereal, pasta)
- Paper tubes (paper towel, toilet paper tubes)
- Shipping, moving boxes
- Pasta sauce jars (remove lid)
- Soda and juice bottles
- Wine, beer, liquor, and spirits bottles
- Newspaper
Brush Recycling Center
310 Deepwood Drive
From roundrocktexas.gov, the town’s official site, checked Oct 21, 2026; pages dated 2025-06-18, 2025-12-12, 2026-01-27, 2026-10-08. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Most of Round Rock (93%) is in Round Rock Independent School District; parts are in Hutto Independent School District (4%).
A−School gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Round Rock spans 3 ZIP codes
ZIP codes where Round Rock residents live, with the share of the town in each.
| ZIP | Post office name | Share of Round Rock | ZIP’s residents in Round Rock |
|---|---|---|---|
| 78664 | Round Rock, TX | 40% | 79% |
| 78665 | Round Rock, TX | 32% | 62% |
| 78681 | Round Rock, TX | 27% | 57% |
A few homes fall in 78728. 78680, 78682, 78683 are P.O. box or single-organization ZIPs with no homes.
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Round Rock
When is the Round Rock Recycling Center open?
Mon–Sat 9:30 am–6 pm, according to OpenStreetMap (as of Oct 9, 2026). Check roundrocktexas.gov before you go: the town sets the hours and who may use it.
Who supplies Round Rock’s drinking water, and has it had violations?
The City of Round Rock water system (EPA ID TX2460003). It reported no health-based violations to EPA in the five years to October 2026; 86% of systems its size had none. Its latest lead 90th percentile was 5.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Round Rock?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What internet providers serve Round Rock?
Spectrum, AT&T, Google Fiber, Verizon, T-Mobile, SOS Communications (FCC, as of December 2025).
What ZIP codes are in Round Rock?
78664 (40%), 78665 (32%), 78681 (27%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Round Rock in?
Round Rock Independent School District. Parts of the city are in Hutto Independent School District.
How do I register to vote in Round Rock?
Texas has no online registration; you can register in person until 30 days before Election Day or by mail (postmarked 30 days before). Elections here are run by the Williamson County Early Voting Clerk. Check your registration at teamrv-mvp.sos.texas.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: Round Rock’s own website (roundrocktexas.gov), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.