🇺🇸 United States ZIP Code

PO BOX

02564

Siasconset

ZIP Code 02564 is a po box zip code serving Siasconset, Siasconset, Massachusetts (MA), in Nantucket County, United States. It has an estimated population of 310 with a median household income of $59,412. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 41.263900
Longitude: -69.962600

Geographic Details

Land Area: 5.77 mi²
Water Area: 1.06 mi²
Population Density: 54.0 people per mi² (40th percentile)
Bounding Box: 41.302304°N, 41.236776°S, -69.958720°E, -70.037608°W

With 310 residents spread across 5.77 square miles, this area has a population density of 54.0 people per square mile.

Demographics

310

Population

10th percentile

$59,412

Median Income

70th percentile

$1,000,001

Median Home Value

95th percentile

5.77 mi²

Land Area

The median household income in 02564 is $59,412, and the median home value is $1,000,001.

Housing

1,203

Total Units

151

Occupied Units

12.6%

Occupancy Rate

Similar ZIP Codes in Massachusetts

ZIP codes with similar median household income in Massachusetts.

02659

South Chatham

$51,033

02370

Rockland

$66,329

01001

Agawam

$58,733

02152

Winthrop

$64,548

02338

Halifax

$67,760

02540

Falmouth

$59,858

01702

Framingham

$53,944

01535

North Brookfield

$54,439

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.