🇺🇸 United States ZIP Code

STANDARD

01220

Adams

ZIP Code 01220 is a standard zip code serving Adams, Adams, Massachusetts (MA), in Berkshire County, United States. It has an estimated population of 8,603 with a median household income of $40,443. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 42.622300
Longitude: -73.117200

Geographic Details

Land Area: 24.59 mi²
Water Area: 0.08 mi²
Population Density: 350.0 people per mi² (65th percentile)
Bounding Box: 42.660173°N, 42.561580°S, -73.063281°E, -73.174282°W

With 8,603 residents spread across 24.59 square miles, this area has a population density of 350.0 people per square mile.

Demographics

8,603

Population

65th percentile

$40,443

Median Income

30th percentile

$151,100

Median Home Value

60th percentile

24.59 mi²

Land Area

The median household income in 01220 is $40,443, and the median home value is $151,100.

Housing

4,434

Total Units

3,962

Occupied Units

89.4%

Occupancy Rate

Similar ZIP Codes in Massachusetts

ZIP codes with similar median household income in Massachusetts.

02134

Allston

$37,820

02657

Provincetown

$41,140

01905

Lynn

$42,490

02126

Mattapan

$45,238

02120

Roxbury Crossing

$35,077

01031

Gilbertville

$42,404

02111

Boston

$43,551

02215

Boston

$35,659

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.