🇺🇸 United States ZIP Code

STANDARD

34145

Marco Island

ZIP Code 34145 is a standard zip code serving Marco Island, Marco Island, Florida (FL), in Collier County, United States. It has an estimated population of 16,407 with a median household income of $69,676. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Florida (FL)
County: Collier
City: Marco Island
Timezone: America/New_York

Coordinates

Latitude: 25.938800
Longitude: -81.696800

Geographic Details

Land Area: 16.27 mi²
Water Area: 24.54 mi²
Population Density: 1008.0 people per mi² (75th percentile)
Bounding Box: 25.975299°N, 25.820072°S, -81.624807°E, -81.757187°W

With 16,407 residents spread across 16.27 square miles, this area has a population density of 1008.0 people per square mile.

Demographics

16,407

Population

75th percentile

$69,676

Median Income

80th percentile

$494,700

Median Home Value

95th percentile

16.27 mi²

Land Area

The median household income in 34145 is $69,676, and the median home value is $494,700. This places the area in the top 25% nationally for household income.

Housing

17,113

Total Units

8,200

Occupied Units

47.9%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Marco Island, FL.

34146

Marco Island

Similar ZIP Codes in Florida

ZIP codes with similar median household income in Florida.

32566

Navarre

$65,064

33196

Miami

$63,773

34242

Sarasota

$79,833

33414

Wellington

$75,632

33027

Hollywood

$61,464

33458

Jupiter

$67,798

33042

Summerland Key

$69,495

33913

Fort Myers

$74,763

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.