🇺🇸 United States ZIP Code

STANDARD

29334

Duncan

ZIP Code 29334 is a standard zip code serving Duncan, Duncan, South Carolina (SC), in Spartanburg County, United States. It has an estimated population of 11,331 with a median household income of $47,103. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: South Carolina (SC)
County: Spartanburg
City: Duncan
Timezone: America/New_York

Coordinates

Latitude: 34.917600
Longitude: -82.125800

Geographic Details

Land Area: 22.19 mi²
Water Area: 0.58 mi²
Population Density: 511.0 people per mi² (70th percentile)
Bounding Box: 34.962242°N, 34.860600°S, -82.065030°E, -82.174266°W

With 11,331 residents spread across 22.19 square miles, this area has a population density of 511.0 people per square mile.

Demographics

11,331

Population

70th percentile

$47,103

Median Income

45th percentile

$128,900

Median Home Value

50th percentile

22.19 mi²

Land Area

The median household income in 29334 is $47,103, and the median home value is $128,900.

Housing

4,793

Total Units

4,311

Occupied Units

89.9%

Occupancy Rate

Similar ZIP Codes in South Carolina

ZIP codes with similar median household income in South Carolina.

29566

Little River

$42,919

29322

Campobello

$44,269

29704

Catawba

$45,096

29209

Columbia

$46,449

29505

Florence

$54,110

29101

Mc Bee

$47,759

29511

Aynor

$41,883

29205

Columbia

$42,721

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.