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Cudjoe Key CDP, FL

ZIP Code 33042 — Cudjoe Key CDP, FL Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow AreaRemote Work Hub

Map, Quick Facts & Location

Quick Facts

Local time
Population
6,781
Median Income
$101,625
+35% vs US avg
Home Value
$759,600
+118% vs US avg
Median Rent
$1,847
+59% vs US avg
Median Age
52.5 yrs
+35% vs US avg
Area Code
Congress
Top Ancestry
EnglishGermanIrish
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Location
Coordinates
24.6788, -81.4997
Elevation
6 ft
Land Area
25.5 sq mi
Water Area
89.6 sq mi (78% water)

At a glance

Population
6,781
Density
N/A
Median income
$101,625
+35% vs US avg
Home value
$759,600
+118% vs US avg
Median rent
$1,847
+59% vs US avg
Timezone

Overview of ZIP Code 33042

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What to know about ZIP 33042

ZIP code 33042 covers Cudjoe Key, FL in Monroe County with a population of about 6,781.

At a glance, the area shows median age of 52.5 versus a U.S. median of about 38.9.

It sits in telephone area codes 305, 645, 786; U.S. House district FL-28; the MIAMI - FT. LAUDERDALE media market.

Income and economy in Cudjoe Key, FL

Median household income in ZIP 33042 is about $101,625 — about 35% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 9.3%; unemployment rate near 3.4%; 44.7% of adults with a bachelor’s degree or higher (about 11.0 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Construction, Healthcare, and Education; about 22.3% of workers reporting work-from-home (about 7.1 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 33042

Median home value is about $759,600 — about 118% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,847 (about 59% above the U.S. median rent ($1,163)), and owner-occupancy near 78.3% (about 12.9 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 33042 in Cudjoe Key, FL, a household would need roughly $209,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $4,879. That is about 106% above the local median household income ($101,625), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Cudjoe Key CDP, FL as Relatively Moderate (composite score 91.6), which is among the highest nationally. The strongest component scores on US5 are hurricane (98.0) and wildfire (61.9). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Cudjoe Key CDP, FL show little to no average snow and around 43.6 inches of annual precipitation.

IRS migration statistics show a net inflow of about 303 for ZIP 33042 (Cudjoe Key CDP, FL) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport NQX (13.8 miles (22.3 km)) · The College of the Florida Keys (16.7 miles (26.9 km)) · Everglades National Park (61.6 miles (99.2 km)) · VA: Key West VA Outpatient Clinic (17.6 miles (28.3 km))

Full lists and map pins are in the Infrastructure section below.