🇺🇸 United States ZIP Code

PO BOX

03595

Twin Mountain

ZIP Code 03595 is a po box zip code serving Twin Mountain, Twin Mountain, New Hampshire (NH), in Coos County, United States. It has an estimated population of 639 with a median household income of $54,375. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: New Hampshire (NH)
County: Coos
City: Twin Mountain
Timezone: America/New_York

Coordinates

Latitude: 44.268900
Longitude: -71.547100

Geographic Details

Land Area: 36.74 mi²
Population Density: 17.0 people per mi² (20th percentile)
Bounding Box: 44.355441°N, 44.254699°S, -71.455165°E, -71.596341°W

With 639 residents spread across 36.74 square miles, this area has a population density of 17.0 people per square mile.

Demographics

639

Population

20th percentile

$54,375

Median Income

60th percentile

$191,500

Median Home Value

70th percentile

36.74 mi²

Land Area

The median household income in 03595 is $54,375, and the median home value is $191,500.

Housing

507

Total Units

281

Occupied Units

55.4%

Occupancy Rate

Similar ZIP Codes in New Hampshire

ZIP codes with similar median household income in New Hampshire.

03851

Milton

$61,947

03773

Newport

$53,955

03813

Center Conway

$51,712

03887

Union

$48,214

03878

Somersworth

$53,241

03608

Walpole

$52,976

03266

Rumney

$47,130

03561

Littleton

$49,214

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.