Electrical repair · Round Rock, Texas

Electrician for repairs and upgrades in Round Rock, TX

Breaker keeps tripping, outlets dead, planning a panel upgrade or EV charger? 9% of Round Rock's homes date from 1960–1979^[1] and 6% from 2020 or later. Request a licensed electrician who works here. Round Rock, in Williamson County and Travis County — ZIPs 78665, 78664, 78681, counts 141,282 residents (2025 estimate)^[2].

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Decision guide

The Round Rock electrical picture in brief

Population (2025 est.): 141,282^[2]+18.2% since 2020
County: Williamson / Travis^[2]city spans more than one county
Land area: 38.6 sq mi^[3]
Population density: 3,659 / sq mi^[2]^[3]
Homes built 1960–1979: 9%^[1]the 4th-highest share of the 15 Austin-area suburbs we cover
Homes built before 1960: 2%^[1]2020–2024
Homes built 2020 or later: 6%^[1]2020–2024
Homes heated with electricity: 47%^[1]the 4th-lowest share of the 15 Austin-area suburbs we cover
Lightning-damage reports within 10 mi: 4^[4]2016–2025
Damaging-wind reports within 10 mi: 41^[4]2016–2025
Winter-storm & freeze days, williamson zone: 23^[4]2016–2025; ice storms knock out power — panel and generator readiness

Reading the Round Rock data for electrical

Round Rock counts 141,282 residents (2025 estimate), growing at a middle-of-the-pack 18.2% since 2020^[2]. The city spans 38.6 square miles at 3,659 residents per square mile (the 1st densest) and spans Williamson County and Travis County, served by ZIP codes 78665, 78664, 78681^[3].

New construction arrives with 200-amp panels and room to grow; the older homes nearby are the ones where panels fill up, double-taps appear, and an EV charger triggers a load calculation.

Round Rock is split across 3 ZIP codes: 78665 (39% of the city's land), 78664 (32% of the city's land), 78681 (28% of the city's land)^[5].

The tracked suburbs closest by are Pflugerville (6.5 mi SE), Hutto (7.2 mi E) and Cedar Park (9.3 mi W)^[3].

Only 9% of Round Rock's housing dates from 1960–1979^[1] (the 4th-highest share of the 15 Austin-area suburbs we cover; nearby, Pflugerville (3%), Hutto (1%), and Cedar Park (5%)), so aluminum-era wiring^[6] is a minor issue; capacity — panel space, circuits, EV chargers — is the bigger one.

47% of Round Rock homes heat with electricity and 50% with gas^[1] — the 4th-lowest share of the 15 Austin-area suburbs we cover (Pflugerville (47%), Hutto (60%), and Cedar Park (43%) nearby). Gas-heated homes often have more panel headroom, but only a load calculation tells.

Within 10 miles of central Round Rock: 41 damaging-wind reports and 4 lightning-damage reports in 2016–2025, the latest on May 28, 2025^[4].

Ice is the other outage risk: 23 winter-storm, ice or hard-freeze days in 2016–2025^[4] — worth knowing when sizing a generator or asking about whole-home surge protection.

6% of Round Rock's housing is from 2020 or later^[1] — new enough that builder warranties still apply to many electrical defects.

Measured against the 15 suburbs on this site, Round Rock records the 3rd-most lightning-damage reports nearby (4)^[4].

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Your request reaches Electrical repair contractors who serve Round Rock (ZIP codes 78665, 78664, 78681).

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Whose wiring is it? Round Rock homes by building type

36%^[1] of Round Rock's homes are attached or in multi-unit buildings (multi-unit buildings alone: 33%, the 4th-highest multi-unit share of the 15 Austin-area suburbs we cover). In a condo or apartment the service entrance, meters and common-area wiring usually belong to the association or landlord, while work inside your unit is usually yours to arrange — check before you book.

After detached houses, the biggest group is 10–19 units: 4,451 of 51,143 housing units^[1].

Round Rock's 51,143 housing units by building type, 2020–2024^[1]
Building type	Units	Share	Margin of error
Detached house	32,923	64.4%	±1,100
Attached house (townhouse, rowhouse)	1,527	3.0%	±367
Duplex (2 units)	1,538	3.0%	±340
3–4 units	910	1.8%	±291
5–9 units	1,430	2.8%	±391
10–19 units	4,451	8.7%	±687
20–49 units	4,022	7.9%	±751
50 or more units	4,308	8.4%	±597
Mobile home	34	0.1%	±53

Margins of error are the Census Bureau’s 90% intervals; small categories in small cities are rough.

The data underneath this Round Rock page

How Round Rock stacks up against the median suburb we cover (median of 15)^[4]^[1]
Measure	Round Rock	Median of 15	Difference
Lightning-damage reports (10 mi)	4	1	3 more
Built 1960–79	9%	3%	6 pts higher
Built 1980–99	34%	13%	22 pts higher
Owner-occupied	56%	69%	14 pts lower
Detached single-family	64%	74%	9 pts lower
Median home value	$418,600	$420,000	about the same
Built before 1960	1.5%	1.5%	same as median

Biggest gaps first. Medians are middle values across the Austin-area suburbs we cover, drawn from the same sources.

Round Rock and nearby suburbs, side by side^[4]^[3]
City	Lightning reports	Damaging-wind reports	Freeze days
Round Rock	4	41	23
Pflugerville 6.5 mi	1	40	22
Hutto 7.2 mi	0	21	23
Cedar Park 9.3 mi	7	45	23
Georgetown 10.0 mi	1	14	23
Leander 12.3 mi	6	25	23

When Round Rock's 51,143 housing units were built^[1]
Built	Units	Share	Margin of error
2020 or later	2,832	5.5%	±546
2010 to 2019	11,556	22.6%	±807
2000 to 2009	13,813	27.0%	±918
1990 to 1999	10,415	20.4%	±973
1980 to 1989	7,141	14.0%	±961
1970 to 1979	3,916	7.7%	±459
1960 to 1969	691	1.4%	±225
1950 to 1959	424	0.8%	±199
1940 to 1949	248	0.5%	±139
1939 or earlier	107	0.2%	±61

ACS 2020–2024 estimates; margins of error are the Census Bureau's 90% intervals.

Most recent damaging-wind reports within 10 miles^[4]
Date	Wind	Distance
May 28, 2025	75 mph (est.)	9.8 mi
May 16, 2024	70 mph (est.)	7.4 mi
May 16, 2024	70 mph (est.)	9.7 mi
Sep 24, 2023	64 mph (est.)	9.7 mi
Sep 24, 2023	70 mph (est.)	3.0 mi
May 5, 2023	60 mph (est.)	4.4 mi

Lightning-damage reports within 10 miles^[4]
Date	Distance
Jul 24, 2017	7.5 mi
Jul 24, 2017	7.4 mi
Jul 23, 2017	8.1 mi
May 9, 2017	6.3 mi

ZIP code areas covering Round Rock^[5]
ZIP (ZCTA)	Share of Round Rock's land	Share of the ZIP inside the city
78665	39%	61%
78664	32%	72%
78681	28%	45%

Dated heat and freeze records for the WILLIAMSON forecast zone: see the county list.

Round Rock electrical questions

Could my Round Rock house have aluminum wiring?

Possibly, if built or rewired roughly 1965–1973^[6]; 9% of Round Rock homes date from 1960–1979^[1].

When did damaging wind last hit near Round Rock?

May 28, 2025, 9.8 miles from the city center, 75 mph^[4].

Which Round Rock ZIP codes are covered?

78665, 78664, and 78681^[5] — Williamson County. Neighbouring suburbs with their own pages: Pflugerville (6.5 mi), Hutto (7.2 mi), and Cedar Park (9.3 mi)^[3].

A lot of Round Rock homes predate 1980 — what does that mean for wiring and panel work?

11% of Round Rock's housing units were built before 1980, 1.5% before 1960^[1] — the 4th-highest share of the 15 Austin-area suburbs we cover. Houses of that age may have smaller panels or original wiring; ask for a panel and grounding check before adding a big load such as an EV charger.

Sources

Data pulled Sep 28, 2026. Full citations and method.