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🇺🇸 United States ZIP Code

STANDARD

29170

West Columbia

ZIP Code 29170 is a standard zip code serving West Columbia, West Columbia, South Carolina (SC), in Lexington County, United States. It has an estimated population of 19,988 with a median household income of $56,415. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

$0 National: $37,585 $150K+ $56,415

Location

State / Province
South Carolina (SC)
County
Lexington
Timezone
America/New_York

Coordinates

Latitude
33.956800
Longitude
-81.140500

Geographic Details

Land Area
24.09 mi²
Water Area
0.35 mi²
Population Density
830.0 people per mi² (75th percentile)
Bounding Box
33.999158°N, 33.880035°S, -81.093345°E, -81.204515°W

With 19,988 residents spread across 24.09 square miles, this area has a population density of 830.0 people per square mile.

Demographics

19,988

Population

80th percentile

$56,415

Median Income

65th percentile

$125,200

Median Home Value

50th percentile

24.09 mi²

Land Area

The median household income in 29170 is $56,415, and the median home value is $125,200.

Housing

8,588

Total Units

7,924

Occupied Units

92.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in West Columbia, SC.

Similar ZIP Codes in South Carolina

ZIP codes with similar median household income in South Carolina.

Frequently Asked Questions

What information is available for each ZIP code?
Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).
What are the different types of ZIP codes?
There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.
How often is ZIP code data updated?
ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.
What is population density and why does it matter?
Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.
How are ZIP code boundaries determined?
ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.
What does median household income tell me about a ZIP code?
Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.