Key Colony Beach, FL · standard
ZIP Code 33051
Monroe County, Florida - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 796
- 704/sq mi
- $94,231
- Median income
- $919,800
- Median home value
- 43.8%
- Bachelor's or higher
National ZIP placement
Key Colony Beach pairs an upper-quartile household income with top-decile home values, in a low-density, homeowner-dominated area.
- Top 23%
- household income, US ZIPs
- Top 3%
- home value, US ZIPs
- 704
- people per sq mi
- 68%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 33051 against every reporting US ZIP.
ZIP code 33051 is a sparsely populated ZIP (a standard USPS delivery area) in Key Colony Beach, Monroe County, Florida, home to just 796 residents across 1.1 square miles, a density of 704 people per square mile, in the New York time zone.
ZIP 33051 lands in the middle-income range, with a median household income of $94,231 (22% above the average Florida ZIP), while per-capita income is $50,017. The poverty rate is 8.2%, with unemployment at 0.0%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $919,800 (145% above the average Florida ZIP), while 68.1% of occupied homes are owner-occupied and median rent is $1,929.
A solid share of residents have a four-year degree: 43.8% of adults hold a bachelor's degree or higher, the median age is 66.5, and the average commute is -. The page also surfaces 1 ZIP codes within roughly 10 miles and 6 more in Monroe County, so 33051 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 33051
Top 5 sectors by establishment count in Key Colony Beach, FL
Which industries have the most business establishments in ZIP 33051.
- Other services (except public administration)
Other services (except public administration)
11 establishments
- Real estate and rental and leasing
Real estate and rental and leasing
6 establishments
- Accommodation and food services
Accommodation and food services
6 establishments
- Construction 4
Construction
4 establishments
- Professional, scientific, and technical services 3
Professional, scientific, and technical services
3 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 33051, Key Colony Beach, FL · 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
796
Population
1.1
Area (sq mi)
704
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 33051?
66.5
Median Age
42.1%
Male
57.9%
Female
8.0%
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?
$94,231
Median Household Income
+22% vs state ZIP avg
$50,017
Per Capita Income
8.2%
Poverty Rate
0.0%
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?
Housing stock: occupied vs vacant
1,105housing units
1,105
Total Housing Units
282
Occupied Units
823
Vacant Units
1.81
Avg Household Size
Occupancy Type
$919,800
Median Home Value
+145% vs state ZIP avg
$1,929
Median Rent
1985
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 39 business establishments in ZIP 33051, employing approximately 187 people with a combined annual payroll of $7,181,000.
39
Businesses
187
Employees
$7.2M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 11 | 28.2% |
| Real estate and rental and leasing | 6 | 15.4% |
| Accommodation and food services | 6 | 15.4% |
| Construction | 4 | 10.3% |
| Professional, scientific, and technical services | 3 | 7.7% |
| Administrative and support and waste management and remediation services | 3 | 7.7% |
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 33051 vs 33050 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 33050 | Marathon, FL | 8,922 | 0.9 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 33051, both outside FL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.