Postal Codes

23405 ZIP Code

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ZIP code 23405 covers Machipongo, Virginia, with a population of about 1,295.

Population
1,29550 per square mile
Median age
48.29.5 points above the US average
Poverty rate
22.1%9.7 points above the US average
Median home value
$343,100about the Virginia median
Degree or higher
35.5%0.5 points above the US average
Homeownership
82.9%17.9 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
17

Where 23405 is

Machipongo, Virginia — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population1,295
Median age48.2
Family households63.2%
Born outside the US5.6%
Speaks a language other than English at home15%
White (non-Hispanic)57%
Black (non-Hispanic)25.7%
Asian (non-Hispanic)0%
Hispanic or Latino16.4%
Veterans12.2%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Income per person$40,771
Poverty rate22.1%
Households on SNAP or cash assistance9.5%

Household income distribution

Under $10k1.7%
$10–15k13.4%
$15–20k4.7%
$20–25k2.2%
$25–30k7.9%
$30–35k1.5%
$35–40k0.0%
$40–45k1.2%
$45–50k5.7%
$50–60k12.7%
$60–75k3.0%
$75–100k8.0%
$100–125k7.9%
$125–150k6.4%
$150–200k10.5%
$200k or more13.4%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed470
Mean adjusted gross income$85,428
Returns declaring $200,000 or more8.5%
Returns, under $25k27.7%
Returns, $25k–$50k21.3%
Returns, $50k–$75k12.8%
Returns, $75k–$100k8.5%
Returns, $100k–$200k21.3%
Returns, $200k or more8.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$343,100
Owner-occupied82.9%
Vacant homes18.9%
Median year built1979

What the homes are

Detached house82.5%
Mobile home17.5%
Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.7%
Bachelor's degree or higher35.5%
High school diploma or higher98.6%
Works from home18%
Drives to work alone66.2%
Takes public transport0%
Commutes 45 minutes or more37.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity40.7% 7.3 pts above the national average of 33.4%
Diagnosed diabetes19.4% 7.4 pts above the national average of 12%
Currently smokes15.9% 2.7 pts above the national average of 13.2%
High blood pressure47.9% 13.8 pts above the national average of 34.1%
Fair or poor general health25.8% 5.5 pts above the national average of 20.3%
No health insurance (18–64)10.5% 0.8 pts below the national average of 11.3%
Depression21.4% 0.5 pts below the national average of 21.9%
No leisure-time physical activity31.8% 6.4 pts above the national average of 25.4%
Arthritis35.8% 10.7 pts above the national average of 25.1%
Binge drinking11.6% 4.4 pts below the national average of 16%
Taking blood pressure medication83.6% 8.9 pts above the national average of 74.7%
Cancer (non-skin)10.7% 3 pts above the national average of 7.7%
Current asthma11% 0.6 pts above the national average of 10.4%
Coronary heart disease10.9% 4.7 pts above the national average of 6.2%
Routine check-up in past year82.6% 5.9 pts above the national average of 76.7%
Cholesterol screening88.9% 3 pts above the national average of 85.9%
Cognitive disability15.7% 0.9 pts above the national average of 14.8%
Colorectal screening66.8% 2.5 pts above the national average of 64.3%
COPD10.9% 4.3 pts above the national average of 6.6%
Visited a dentist63.1% 1.8 pts above the national average of 61.3%
Any disability39.3% 8.6 pts above the national average of 30.7%
Lacks emotional support21.6% 3.2 pts below the national average of 24.8%
Food insecurity17.5% same as the national average of 17.1%
Received food stamps16.6% 2.3 pts above the national average of 14.3%
Hearing disability10.4% 3.7 pts above the national average of 6.7%
High cholesterol45.6% 9.4 pts above the national average of 36.2%
Housing insecurity12.6% 1.2 pts below the national average of 13.8%
Independent living disability10.6% 2.2 pts above the national average of 8.4%
Lacks transport9.3% same as the national average of 9.2%
Loneliness31.1% 3.3 pts below the national average of 34.4%
Mammography use72.7% 3.2 pts below the national average of 75.9%
Poor mental health (14+ days)15.9% 0.9 pts below the national average of 16.8%
Mobility disability22% 8 pts above the national average of 14%
Poor physical health (14+ days)17.3% 3.8 pts above the national average of 13.5%
Self-care disability5.8% 1.8 pts above the national average of 4%
Utility shut-off threat9.2% same as the national average of 8.8%
Sleeps under 7 hours34.4% 2 pts below the national average of 36.4%
Stroke5.7% 2.3 pts above the national average of 3.4%
All natural teeth lost19.1% 6.1 pts above the national average of 13%
Vision disability7.3% 1.7 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments17
People employed93
Annual payroll$3,682,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 93.6% of US census tracts
FEMA ratingRelatively High
Expected annual loss87.9 out of 100
Community resilience95.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Strong wind99.7Very High at its worst in this ZIP code
Drought99.4Relatively High at its worst in this ZIP code
Hurricane97.8Very High at its worst in this ZIP code
Coastal flooding95.4Relatively Moderate at its worst in this ZIP code
Hail83.7Relatively Moderate at its worst in this ZIP code
Wildfire79.6Relatively Low at its worst in this ZIP code
Cold wave69.7Relatively Moderate at its worst in this ZIP code
Landslide55.5Very Low at its worst in this ZIP code
Tornado53.7Relatively Moderate at its worst in this ZIP code
Lightning52.7Relatively Moderate at its worst in this ZIP code
Heat wave52Relatively Low at its worst in this ZIP code
Ice storm49.3Relatively Low at its worst in this ZIP code
Earthquake39.6Very Low at its worst in this ZIP code
River flooding37.3Relatively Low at its worst in this ZIP code
Winter weather34.7Relatively Low at its worst in this ZIP code
Compared with Virginia and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPVirginiaUnited States
Median household income$90,974$78,538
Income per person$40,771$49,217$43,289
Poverty rate22.1%9.9%12.4%
Median home value$343,100$360,700$303,400
Median gross rent$1,514$1,348
Homeownership82.9%67.2%65%
Bachelor's degree or higher35.5%41.5%35%
Unemployment rate2.7%4.3%5.2%
Works from home18%16.2%13.5%
Born outside the US5.6%12.9%13.9%
Median age48.238.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationEASTVILLE, VA US6 km away

Average high and low by month

January46.3°F / 32.8°F
February48.3°F / 33.1°F
March54.6°F / 38.3°F
April65.3°F / 48.1°F
May73.3°F / 57.4°F
June82°F / 67.4°F
July87.3°F / 72.5°F
August84.6°F / 70.4°F
September79.2°F / 65°F
October69.8°F / 54.9°F
November58.4°F / 44.3°F
December50.7°F / 36.7°F
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Northampton County Public Schools100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability81more vulnerable than 81% of US census tracts
Socioeconomic status66more vulnerable than 66% of US census tracts
Household characteristics73more vulnerable than 73% of US census tracts
Racial and ethnic minority status64more vulnerable than 64% of US census tracts
Housing type and transport91more vulnerable than 91% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

23307 Birdsnest, VA4.8 km away
23347 Eastville, VA6.4 km away
23354 Franktown, VA6.4 km away
23408 Marionville, VA8.1 km away
23413 Nassawadox, VA9.1 km away
23419 Oyster, VA10.6 km away
23398 Jamesville, VA12.8 km away
23350 Exmore, VA13.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Northampton County100% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area25.69 sq mi
Water area7.41 sq mi
Population density50 people per sq mi
Latitude, longitude37.4014, -75.9082

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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