Johns Island, SC · standard
ZIP Code 29455
Charleston County, South Carolina - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 20,478
- 74/sq mi Moderate-density area
- $121,372
- Median income Above-median income area
- $590,800
- Median home value Above-median home value
- 59.5%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Johns Island pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 9%
- household income, US ZIPs
- Top 10%
- home value, US ZIPs
- 74
- people per sq mi
- 88%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 29455 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 29455 (Johns Island, SC) rose +11.1% from 2023 to 2024. The all-transactions index moved from 316.1 in 2023 to 351.1 in 2024 (2000 = 100).
ZIP code 29455 is a densely settled ZIP (a standard USPS delivery area) in Johns Island, Charleston County, South Carolina, with 20,478 residents across 278.2 square miles, a density of 74 people per square mile, in the New York time zone.
ZIP 29455 skews affluent, with a median household income of $121,372 (90% above the average South Carolina ZIP), while per-capita income is $80,015. The poverty rate is 9.0%, with unemployment at 1.5%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $590,800 (161% above the average South Carolina ZIP), while 88.2% of occupied homes are owner-occupied and median rent is $1,567.
This is a highly-educated ZIP: 59.5% of adults hold a bachelor's degree or higher, the median age is 49.8, and the average commute is 29 minutes. The page also surfaces 6 ZIP codes within roughly 10 miles and 6 more in Charleston County, so 29455 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 29455
Top 5 sectors by establishment count in Johns Island, SC
Which industries have the most business establishments in ZIP 29455.
- Construction
Construction
171 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
114 establishments
- Retail trade
Retail trade
98 establishments
- Other services (except public administration)
Other services (except public administration)
79 establishments
- Accommodation and food services
Accommodation and food services
74 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 29455, Johns Island, SC · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
20,478
Population
278.2
Area (sq mi)
74
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 29455?
49.8
Median Age
48.2%
Male
51.8%
Female
6.4%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$121,372
Median Household Income
+90% vs state ZIP avg
$80,015
Per Capita Income
9.0%
Poverty Rate
1.5%
Unemployment Rate
29.1 min
Mean Commute Time
How ZIP 29455 ranks among South Carolina ZIPs
Johns Island, SC household income vs. every South Carolina ZIP code
Median household income among 384 reporting South Carolina ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$121,372 Top 2% higher than 98% of 384 South Carolina ZIPs
Each bar is a $20K-wide band; taller bars hold more South Carolina ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
17,781housing units
17,781
Total Housing Units
12,249
Occupied Units
5,532
Vacant Units
2.24
Avg Household Size
Occupancy Type
$590,800
Median Home Value
+161% vs state ZIP avg
$1,567
Median Rent
2001
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+11.1%
YoY Change (2024)
351
HPI Index (2000 = 100)
+251%
Total Change Since 2000
Home values in ZIP 29455 have increased 11.1% over the past year (2024). Since 2000, this ZIP has seen +251% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +6.9% | 207 |
| 2021 | +13.4% | 235 |
| 2022 | +20.5% | 284 |
| 2023 | +11.5% | 316 |
| 2024 | +11.1% | 351 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 861 business establishments in ZIP 29455, employing approximately 8,437 people with a combined annual payroll of $402,315,000.
861
Businesses
8,437
Employees
$402.3M
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 171 | 19.9% |
| Professional, scientific, and technical services | 114 | 13.2% |
| Retail trade | 98 | 11.4% |
| Other services (except public administration) | 79 | 9.2% |
| Accommodation and food services | 74 | 8.6% |
| Administrative and support and waste management and remediation services | 69 | 8.0% |
| Health care and social assistance | 67 | 7.8% |
| Real estate and rental and leasing | 64 | 7.4% |
| Finance and insurance | 31 | 3.6% |
| Manufacturing | 23 | 2.7% |
| Arts, entertainment, and recreation | 21 | 2.4% |
| Wholesale trade | 14 | 1.6% |
| Transportation and warehousing | 13 | 1.5% |
| Information | 10 | 1.2% |
| Utilities | 4 | 0.5% |
| Educational services | 4 | 0.5% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 29455 vs 29487 →
ZIP 29455 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 29412
Charleston (29412)
35,850 residents
- 29407
Charleston (29407)
34,827 residents
- 29414
Charleston (29414)
31,883 residents
- 29403
Charleston (29403)
20,818 residents
- 29455
Johns Island (29455)
20,478 residents
- 29487 2,725
Wadmalaw Island (29487)
2,725 residents
- 29409 2,100
Charleston (29409)
2,100 residents
What this shows Among its immediate neighbors, ZIP 29455 ranks #5 by population - useful context the national average alone can't give.
ZIP 29455 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 29455
Johns Island (29455)
$121,372 median income
- 29487
Wadmalaw Island (29487)
$105,592 median income
- 29412
Charleston (29412)
$101,509 median income
- 29414
Charleston (29414)
$99,529 median income
- 29407
Charleston (29407)
$85,367 median income
- 29403
Charleston (29403)
$66,944 median income
What this shows By household income, ZIP 29455 ranks the highest of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 29455, both outside SC so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (20,478 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Charleston County
Related Areas
Frequently Asked Questions
What county is ZIP code 29455 in?
ZIP code 29455 (Johns Island) is located in Charleston County, South Carolina. Charleston County contains multiple ZIP codes, see the full list at /counties/charleston-sc.
What is the population of ZIP code 29455?
ZIP code 29455 in Johns Island, SC has a population of 20,478 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 29455?
The median household income in ZIP 29455 is $121,372, which is 59% above the national average of $76,288.
What is the average home value in ZIP 29455?
The median home value in ZIP 29455 is $590,800, which is 112% above the national average of $278,155.
What is the demographic makeup of ZIP 29455?
The largest racial group in ZIP 29455 is White at 76.1%. Hispanic or Latino residents make up 7.3% of the population.
How many businesses are in ZIP code 29455?
ZIP code 29455 has 861 business establishments employing approximately 8,437 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 29455?
The top industries by establishment count in ZIP 29455 are: Construction (171), Professional, scientific, and technical services (114), Retail trade (98). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 29455?
According to the FHFA House Price Index, home values in ZIP 29455 increased by 11.1% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 251%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 29455?
In ZIP code 29455, 73.4% of residents aged 25+ have a high school diploma or higher, and 59.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 29455?
The mean commute time for workers in ZIP code 29455 is 29.1 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 29455?
In ZIP code 29455, approximately 88.2% of occupied housing units are owner-occupied and 11.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 29455?
The poverty rate in ZIP code 29455 is 9.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 29455's numbers, next.
- See how ZIP 29455 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Johns Island, SC ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.