ZIP Code 78783 in Austin, TX

Data Last Updated: February 1, 2026
City:Austin, Texas
Names to Avoid:
City Water And Light Dept
County:Travis County
Timezone:Central (GMT -06:00)
Local Time:9:52:08 AM
Population:No Population Data
Area Code:512
Classification:Unique [Company/Government]
Coordinates:30.2667, -97.7428
Quick Link:
https://www.zip-codes.com/zip-code/78783/zip-code-78783.asp

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78783 - City Water and Light Department

Austin, TX | Travis County | Institution

City Water and Light Department

Entity TypeInstitution
LocationAustin, TX
CountyTravis
FacilityPost Office
Coordinates30.2245, -97.7624
CoverageSingle point (Coordinates mark the primary delivery location)
Key Facts
  • Single-entity ZIP serving City Water and Light Department
  • USPS Post Office classification
  • Delivers to 1 business address (no residential delivery)
  • Located in the Austin - Round Rock Metro Area, TX metro area
  • Established 1895; first lit 31 moonlight towers in May 1895
  • 9th largest community-owned electric utility in the nation; only city with working moonlight towers
Entity Type
Institution
Facility
Post Office
Neighborhood
St. Edwards
Delivery Type
Business

About ZIP Code 78783

Austin Energy, the City of Austin's municipal electric utility established in 1895, operates under dedicated ZIP code 78783 for correspondence processing in Travis County. Austinites have owned their electric utility since switches were thrown in May 1895 to illuminate 31 iconic moonlight towers, with an official dedication celebration held that July. Austin remains the only city in the world with working moonlight towers, with 17 remaining towers listed on the National Register of Historic Places since 1976.

This designation serves Austin Energy's operations in the St. Edwards neighborhood, part of the Greater South River City area, about 70 miles from San Antonio. The utility ranks as the nation's 9th largest community-owned electric utility, serving more than 560,000 customer accounts and over one million residents in Greater Austin. Postal records show 4 ZIP+4 delivery codes routing correspondence through this designation. Census demographic data is not available. Austin is the valid mailing city, and the ZIP falls within Texas Congressional Districts 37 and 25.

Delivery Points
Residential:0
Business:1

Address Format

[Recipient Name]
[Street Address]
AUSTIN, TX 78783

Business & Employment Statistics


ZIP Code 78783 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 78783 is located in Travis County, Texas, within the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area (CBSA 12420) and Texas's 25th and 37th Congressional Districts. This Metro area has a population of 1,716,289 people, about 0.00% of whom live in ZIP Code 78783. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Austin-Round Rock-San Marcos, TXSource: Census
CBSA Number:12420Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:1,716,289Source: Census
MSA:Austin-San Marcos, TX MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:25,37Source: USPS
Congressional Land Area:7620.7, 0 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:4805000Source: Census
Place Name:Austin city; TexasSource: Census

Adjacent & Nearby ZIP Codes


78799 | | 78779

Schools in ZIP Code 78783


We could not locate which school district 78783 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Sanchez El 73 San Marcos St
Austin, TX 78702
District: Austin Independent School DistrictNearby
Learn4life-Austin 901 E 12th St
Austin, TX 78702
District: UnknownNearby
University Of Texas At Austin H S 2901 N Ih 35
Austin, TX 78722
District: UnknownNearby
The University Of Texas At Austin International H 1616 Guadalupe Ste 0134
Austin, TX 78701
District: UnknownNearby
Austin St Hospital 1111 W 6th St
Austin, TX 78703
District: Austin Independent School DistrictNearby
Cathedral School Of St Mary 910 San Jacinto Blvd
Austin, TX 78701
District: Private SchoolNearby
Headwaters School 807 Rio Grande St
Austin, TX 78701
District: Private SchoolNearby
Headwaters School 809 Rio Grande
Austin, TX 78701
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 78783


The University Of Texas System Office 210 W. 7th St
Austin, TX 78701-2982
Type: Post Secondary
The University Of Texas At Austin 110 Inner Campus Drive
Austin, TX 78705
Type: Post Secondary
Huston-Tillotson University 900 Chicon St
Austin, TX 78702-2795
Type: Post Secondary
Austin Presbyterian Theological Seminary 100 E 27th St
Austin, TX 78705-5711
Type: Post Secondary
Episcopal Theological Seminary Of The Southwest 501 E. 32nd St.
Austin, TX 78705
Type: Post Secondary
Academy Of Hair Design - Austin 2015 East Riverside Drive
Austin, TX 78741-1338
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov