29909 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Bluffton, SC

ZIP Code 29909: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Okatie, SC 29909

Acceptable Alternative
Bluffton, SC 29909

Not Acceptable, USPS
Callawassie Island, SC 29909
Spring Island, SC 29909
Sun City, SC 29909

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  • ZIP Code Type: STANDARD
  • County: Beaufort County
  • Centroid: Latitude 32.262, Longitude -80.867
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

ZIP Code 29909 has segments in 2 Counties (Beaufort, Jasper).

  • Businesses Addresses: 176
  • PO Box Addresses: 0
  • Residential Addresses: 12,783
    • Multi-Family Addresses: 608
    • Single Family Addresses: 12,175

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2021, Maps updated: May 5, 2021.


Okatie, SC 29909 Data & Demographics (As of July 1, 2021)


Total Population 22,420 (100%)
Population in Households 22,150 (98.8%)
Population in Families 18,271 (81.5%)
Population in Group Quarters1 270 ( 1.2%)
Population Density 402
Diversity Index2 25


Median Household Income $77,454
Average Household Income $101,842
% of Income for Mortgage4 17%
Per Capita Income $49,547
Wealth Index5 163


Total HU (Housing Units) 12,977 (100%)
Owner Occupied HU 10,061 (77.5%)
Renter Occupied HU 840 ( 6.5%)
Vacant Housing Units 2,076 (16.0%)
Median Home Value $319,807
Average Home Value $406,053
Housing Affordability Index3 153


Total Households 10,901
Average Household Size 2.03
Family Households 7,814
Average Family Size 2
  1. 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.
  2. 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.
  3. 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.
  4. 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).
  5. 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.


2010-2021 2021-2026
Population 2.79% 1.86%
Households 2.52% 1.81%
Families 2.32% 1.72%
Median Household Income   0.98%
Per Capita Income   1.78%
Owner Occupied HU   1.8%

Okatie, SC 29909 - Peer Comparisons by Rank and Percentile

The table below compares 29909 to the other 396 ZIP Codes in South Carolina by rank and percentile using July 1, 2021 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.

Variable Description Rank Percentile
Total Population # 89 78th
Population Density # 107 73rd
Median Household Income # 31 92nd
Housing Affordability Index # 96 24th
Per Capita Income # 15 96th
Diversity Index # 359 9th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Carolina Census Data Comparison Tool.

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