29836 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Allendale County
Centroid: Latitude 33.097, Longitude -81.526
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 29836 has segments in 2 Counties (Allendale, Barnwell).

Businesses Addresses: 8
PO Box Addresses: 20
Residential Addresses: 227

Multi-Family Addresses: 0
Single Family Addresses: 227

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

Martin, SC 29836 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	415 (100%)
Population in Households	415 (100.0%)
Population in Families	338 (81.4%)
Population in Group Quarters¹	0
Population Density	3
Diversity Index²	57


INCOME
Median Household Income	$28,608
Average Household Income	$51,678
% of Income for Mortgage⁴	16%
Per Capita Income	$23,784
Wealth Index⁵	42
Socioeconomic Status Index⁶	Low (40.9)

HOUSING
Total HU (Housing Units)	281 (100%)
Owner Occupied HU	161 (57.3%)
Renter Occupied HU	37 (13.2%)
Vacant Housing Units	83 (29.5%)
Median Home Value	$71,667
Average Home Value	$105,656
Housing Affordability Index³	138

HOUSEHOLDS
Total Households	198
Average Household Size	2.10
Family Households	125
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Martin, SC 29836 - Peer Comparisons by Rank and Percentile

The table below compares 29836 to the other 396 ZIP Codes in South Carolina by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	0.51%	-1.75%
Households	-1.02%	-1.14%
Families		-2.52%
Median Household Income		2.51%
Per Capita Income		2.46%
Owner Occupied HU		-2.07%

Variable Description	Rank	Percentile
Total Population	# 375	6th
Population Density	# 394	1st
Median Household Income	# 391	2nd
Housing Affordability Index	# 331	84th
Per Capita Income	# 348	12th
Diversity Index	# 156	61st

29836 ZIP Code Profile, Map, Data & Demographics

ZIP Code 29836: Basic Data & USPS Preferred City Name

Martin, SC 29836 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Martin, SC 29836 - Peer Comparisons by Rank and Percentile

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