US ZIP Code
33051

Key Colony Beach, FL

Monroe County  ·  Florida

● Active
👥 525 Population ↓ 2% since 2019
💰 $94,531 Median HH Income
▲ 24% above avg ↓ 6% since 2019
🎂 66.1 Median Age
🏠 $834,800 Median Home Value
▲ 199% above avg ↑ 38% since 2019
🎓 56.7% College Grads
▲ 46% above avg
📊 0.0% Unemployment
▼ 100% below avg
ZIP Code Details
ZIP Code33051
CityKey Colony Beach
StateFlorida (FL)
CountyMonroe County
Area Code305/645/786
Elevation2 ft
Latitude24.723406
Longitude-81.021647
TimezoneNew York (DST)
FIPS12087
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 45.0% (236) Female 55.1% (289) ♀

Race & Ethnicity

White: 93.1%Hispanic: 6.9%Race
White93.1%
Hispanic6.9%

Age Breakdown

5–17
3%
25–44
9%
45–64
34%
65+
17%

Key Indicators

Median Age66.1 yrs
Avg Household Size1.71
Below Poverty5.1% ▼ 49% below avg
College Grads56.7% ▲ 46% above avg
Unemployment0.0% ▼ 100% below avg
HS Graduate115 (23.7%)
Some College9 (1.9%)
Associates86 (17.7%)
Bachelors46 (9.5%)
Graduate Degree229 (47.2%)

Education

HS Grad: 23.7%Some College: 1.9%Associates: 17.7%Bachelors: 9.5%Graduate: 47.2%Edu
HS Grad23.7%
Some College1.9%
Associates17.7%
Bachelors9.5%
Graduate47.2%
Housing & Income

Housing Tenure

Owner: 69.7%Renter: 30.3%Tenure
Owner69.7%
Renter30.3%

Home Value Distribution

$100k–150k
5%
$200k–300k
5%
$300k–500k
11%
Over $500k
79%

Financials

Median HH Income$94,531 ▲ 24% above avg ↓ 6% since 2019
Median Home Value$834,800 ▲ 199% above avg ↑ 38% since 2019
Home/Income Ratio8.8x (nat avg ~3.5x)
Median Rent$1,849/mo ↑ 53% since 2019
Total Units1,132
Vacant Units825
Avg HH Size1.71

Income Distribution

Under $25k
15%
$25k–50k
9%
$50k–75k
19%
$75k–100k
6%
$100k–150k
31%
$150k–200k
10%
Over $200k
10%
Employment & Commute

How People Get to Work

Drove Alone
67%
Walked
18%
Work From Home
15%

Commute Time

Under 15 min
73%
15–30 min
24%
30–45 min
4%
Housing Stock

Year Built

1940s–1950s
8%
1960s–1970s
15%
1980s–1990s
27%
2000+
50%

Summary

Total Units1,132
Vacant825
Owner Occupied69.7%
Renter Occupied30.3%
Avg HH Size1.71
Frequently Asked Questions
ZIP code 33051 is in Key Colony Beach, FL, in Monroe County.
ZIP code 33051 is located in Florida (FL).
ZIP code 33051 is in Monroe County, FL.
ZIP 33051 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 33051 is 525 people (ACS 2023).
The median household income in ZIP code 33051 is $94,531 (ACS 2023).
The median home value in ZIP 33051 is $834,800 (ACS 2023).
About ZIP Code 33051

ZIP code 33051 is located in Key Colony Beach, Florida, within Monroe County. With a population of 525, this is a sparsely populated ZIP code with an older community — the median age is 66.1 years. Economically, 33051 is a middle-income ZIP code: the median household income of $94,531 is above the national average.

Real estate in ZIP code 33051 represents among the most expensive housing markets in the country. The median home value of $834,800 is more than double the national average. Renters can expect to pay around $1,849 per month in median rent. Homeownership is strong here — 69.7% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 38% since 2019.

The population of 33051 is primarily White (93.14%). Residents are well-educated — 56.7% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 5.1%. Household income has declined by 6% since 2019.

About 14% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 64%.

Overall, ZIP code 33051 in Key Colony Beach, FL is characterized as middle-income, well-educated, an older community, and predominantly owner-occupied. With 525 residents, a median household income of $94,531, and a median home value of $834,800, it offers a clear picture of life in this part of Florida.