🇺🇸 United States ZIP Code

STANDARD

23430

Smithfield

ZIP Code 23430 is a standard zip code serving Smithfield, Smithfield, Virginia (VA), in Isle of Wight County, United States. It has an estimated population of 17,281 with a median household income of $68,348. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Virginia (VA)
County: Isle of Wight
City: Smithfield
Timezone: America/New_York

Coordinates

Latitude: 36.981100
Longitude: -76.636800

Geographic Details

Land Area: 100.54 mi²
Water Area: 27.31 mi²
Population Density: 172.0 people per mi² (60th percentile)
Bounding Box: 37.153827°N, 36.870203°S, -76.535930°E, -76.792683°W

With 17,281 residents spread across 100.54 square miles, this area has a population density of 172.0 people per square mile.

Demographics

17,281

Population

75th percentile

$68,348

Median Income

80th percentile

$273,600

Median Home Value

85th percentile

100.54 mi²

Land Area

The median household income in 23430 is $68,348, and the median home value is $273,600. This places the area in the top 25% nationally for household income.

Housing

7,104

Total Units

6,664

Occupied Units

93.8%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Smithfield, VA.

23431

Smithfield

Similar ZIP Codes in Virginia

ZIP codes with similar median household income in Virginia.

24104

Huddleston

$58,555

23071

Hartfield

$69,167

23069

Hanover

$77,604

22044

Falls Church

$72,977

23321

Chesapeake

$69,876

23235

Richmond

$67,956

22312

Alexandria

$76,845

22734

Remington

$67,125

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.