🇺🇸 United States ZIP Code

STANDARD

33813

Lakeland

ZIP Code 33813 is a standard zip code serving Lakeland, Lakeland, Florida (FL), in Polk County, United States. It has an estimated population of 31,698 with a median household income of $74,651. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Florida (FL)
County: Polk
City: Lakeland
Timezone: America/New_York

Coordinates

Latitude: 27.961100
Longitude: -81.939800

Geographic Details

Land Area: 15.40 mi²
Water Area: 1.20 mi²
Population Density: 2058.0 people per mi² (85th percentile)
Bounding Box: 27.996973°N, 27.920622°S, -81.870004°E, -81.983009°W

With 31,698 residents spread across 15.40 square miles, this area has a population density of 2058.0 people per square mile.

Demographics

31,698

Population

90th percentile

$74,651

Median Income

85th percentile

$173,700

Median Home Value

65th percentile

15.40 mi²

Land Area

The median household income in 33813 is $74,651, and the median home value is $173,700. This places the area in the top 25% nationally for household income.

Housing

12,812

Total Units

11,951

Occupied Units

93.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Lakeland, FL.

33801

Lakeland

33802

Lakeland

33803

Lakeland

33804

Lakeland

33805

Lakeland

33806

Lakeland

33807

Lakeland

33809

Lakeland

33810

Lakeland

33811

Lakeland

Similar ZIP Codes in Florida

ZIP codes with similar median household income in Florida.

32746

Lake Mary

$75,344

34105

Naples

$68,539

34637

Land O Lakes

$71,289

32653

Gainesville

$69,574

32561

Gulf Breeze

$83,182

32563

Gulf Breeze

$65,583

32223

Jacksonville

$77,031

34229

Osprey

$73,836

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.