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ZIP Code Database - Facts & Stats

Data Last Updated: January 1, 2023

Zip Code 78957, Smithville, TX

ZIP Code 78957 Details

Zip Code:78957
State:TX [Texas]
Counties:BASTROP, TX
Multi County:Yes
City Alias(es):Smithville
City Alias(es) To Avoid Using:Kirtley
Area Code:512 / 737 / 830 / 979
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:410 ft
State FIPS:48
County FIPS:021
Division:West South Central
Intro Date:<2004-10

ZIP Code 78957 2010 Census Demographics

Current Population:10,397
2010 Population:9,067
Households per ZIP Code:3,581
Average House Value:$210,500
Avg. Income Per Household:$64,063
Persons Per Household:2.50
White Population:7,806
Black Population:726
Hispanic Population:1,413
Asian Population:91
American Indian Population:129
Hawaiian Population:22
Other Population:484
Male Population:4,497
Female Population:4,570
Median Age:43.90 years
Male Median Age:43.30 years
Female Median Age:44.40 years

ZIP Code 78957 Other Demographics

# Residential Mailboxes:4,159
# Business Mailboxes:198
Total Delivery Receptacles:5,227
Number of Businesses:176
1st Quarter Payroll:$10,612,000
Annual Payroll:$44,448,000
# of Employees:1,118
Water Area:2.06 sq mi
Land Area:177.05 sq mi
113th Congressional District:10|27
113th Congressional Land Area:5070.95|9128.25 sq mi
Single Family Delivery Units:3,661
Multi Family Delivery Units:45
# Residential Mailboxes:4,159
# Business Mailboxes:198
Total Delivery Receptacles:5,227

ZIP Code 78957 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,285 2,340 +55
Retired Workers: 1,640 1,695 +55
Disabled Workers: 285 270 -15
Widow(er)s and Parents: 155 150 -5
Spouses: 70 85 +15
Children: 135 140 +5
65+: 1,735 1,805 +70
Monthly Benefits - All: $3,028,000 $3,184,000 +$156,000
Monthly Benefits - Retired Workers: $2,327,000 $2,474,000 +$147,000
Monthly Benefits - Widow(ers): $209,000 $212,000 +$3,000

ZIP Code 78957 Statistical Areas

CBSA: 12420
CBSA Name: Austin-Round Rock-Georgetown, TX
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:1,716,289
CBSA Division Population:0
MSA: 0640
MSA Name: Austin-San Marcos, TX MSA
PMSA Name: 
City State Key:W25665
Preferred Last Line Key:W25665
78956: Previous ZIP Code
Next ZIP Code: 78959


  1. U.S. Postal Service [Last Updated: 1/1/2023],
  2. Internal Data Creation [Last Updated: 1/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 1/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],