Dauphin Island, AL · standard
ZIP Code 36528
Mobile County, Alabama - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,237
- 76/sq mi
- $67,206
- Median income
- $432,200
- Median home value
- 42.4%
- Bachelor's or higher
National ZIP placement
Dauphin Island pairs a below-median household income with upper-quartile home values, in a rural, homeowner-dominated area.
- 42nd pct
- household income, US ZIPs
- Top 18%
- home value, US ZIPs
- 76
- people per sq mi
- 98%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 36528 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 36528 (Dauphin Island, AL) fell -8.2% from 2023 to 2024. The all-transactions index moved from 350.7 in 2023 to 321.9 in 2024 (2000 = 100).
ZIP code 36528 is a sparsely populated ZIP (a standard USPS delivery area) in Dauphin Island, Mobile County, Alabama, home to just 1,237 residents across 16.3 square miles, a density of 76 people per square mile, in the Chicago time zone.
ZIP 36528 reports a modest median household income of $67,206 (10% above the average Alabama ZIP), while per-capita income is $57,139. Unemployment is 14.3%, an important qualifier alongside the household-income figure. Housing is both higher-cost and owner-heavy: median home value is $432,200 (144% above the average Alabama ZIP), while 97.5% of occupied homes are owner-occupied and median rent is $1,844.
A solid share of residents have a four-year degree: 42.4% of adults hold a bachelor's degree or higher, the median age is 62.2, and the average commute is -. The page also surfaces 2 ZIP codes within roughly 10 miles and 6 more in Mobile County, so 36528 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 36528
Top 5 sectors by establishment count in Dauphin Island, AL
Which industries have the most business establishments in ZIP 36528.
- Accommodation and food services
Accommodation and food services
14 establishments
- Real estate and rental and leasing
Real estate and rental and leasing
11 establishments
- Retail trade
Retail trade
9 establishments
- Transportation and warehousing 4
Transportation and warehousing
4 establishments
- Professional, scientific, and technical services 4
Professional, scientific, and technical services
4 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 36528, Dauphin Island, AL · 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
1,237
Population
16.3
Area (sq mi)
76
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 36528?
62.2
Median Age
50.5%
Male
49.5%
Female
0.6%
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?
$67,206
Median Household Income
+10% vs state ZIP avg
$57,139
Per Capita Income
6.6%
Poverty Rate
14.3%
Unemployment Rate
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?
2,262
Total Housing Units
872
Occupied Units
1,390
Vacant Units
2.11
Avg Household Size
Occupancy Type
$432,200
Median Home Value
+144% vs state ZIP avg
$1,844
Median Rent
1993
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
-8.2%
YoY Change (2024)
322
HPI Index (2000 = 100)
+222%
Total Change Since 2000
Home values in ZIP 36528 have decreased 8.2% over the past year (2024). Since 2000, this ZIP has seen +222% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +8.3% | 210 |
| 2021 | +15.2% | 242 |
| 2022 | +31.4% | 318 |
| 2023 | +10.2% | 351 |
| 2024 | -8.2% | 322 |
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 52 business establishments in ZIP 36528, employing approximately 518 people with a combined annual payroll of $19,782,000.
52
Businesses
518
Employees
$19.8M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 14 | 26.9% |
| Real estate and rental and leasing | 11 | 21.1% |
| Retail trade | 9 | 17.3% |
| Transportation and warehousing | 4 | 7.7% |
| Professional, scientific, and technical services | 4 | 7.7% |
| Other services (except public administration) | 3 | 5.8% |
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 36528 vs 36523 →
ZIP 36528 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 36523
Coden (36523)
2,818 residents
- 36509
Bayou La Batre (36509)
1,983 residents
- 36528
Dauphin Island (36528)
1,237 residents
What this shows Among its immediate neighbors, ZIP 36528 ranks #3 by population - useful context the national average alone can't give.
ZIP 36528 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 36528
Dauphin Island (36528)
$67,206 median income
- 36523
Coden (36523)
$61,607 median income
- 36509
Bayou La Batre (36509)
$33,488 median income
What this shows By household income, ZIP 36528 ranks the highest of 3 neighboring ZIPs, local affluence varies block to block, not just metro to metro.