🇺🇸 United States ZIP Code

STANDARD

01420

Fitchburg

ZIP Code 01420 is a standard zip code serving Fitchburg, Fitchburg, Massachusetts (MA), in Worcester County, United States. It has an estimated population of 40,337 with a median household income of $45,363. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Massachusetts (MA)
County: Worcester
City: Fitchburg
Timezone: America/New_York

Coordinates

Latitude: 42.579600
Longitude: -71.803100

Geographic Details

Land Area: 30.32 mi²
Water Area: 0.69 mi²
Population Density: 1331.0 people per mi² (80th percentile)
Bounding Box: 42.637985°N, 42.511744°S, -71.747769°E, -71.862953°W

With 40,337 residents spread across 30.32 square miles, this area has a population density of 1331.0 people per square mile.

Demographics

40,337

Population

95th percentile

$45,363

Median Income

40th percentile

$191,100

Median Home Value

70th percentile

30.32 mi²

Land Area

The median household income in 01420 is $45,363, and the median home value is $191,100.

Housing

17,128

Total Units

15,175

Occupied Units

88.6%

Occupancy Rate

Similar ZIP Codes in Massachusetts

ZIP codes with similar median household income in Massachusetts.

01339

Charlemont

$50,536

02639

Dennis Port

$46,510

02122

Dorchester

$50,192

01851

Lowell

$51,630

01331

Athol

$50,498

01119

Springfield

$46,055

02670

West Dennis

$49,871

01603

Worcester

$48,183

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.