What city is ZIP code 23356?

ZIP code 23356 is in Greenbackville, VA (Accomack County).

What county is ZIP code 23356 in?

ZIP code 23356 is mostly in Accomack County, Virginia.

How many people live in ZIP code 23356?

About 1,628 people live in the 23356 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 23356

Greenbackville, VA, Accomack County

Population

1,628

Land area

3.6sq mi

People per sq mi

458

City

Greenbackville

ZIP 23356 and nearby ZIP codes

Full map

ZIP 23356 at a glance

ZIP 23356 (Greenbackville) is about 2.1 times as dense as Virginia as a whole.
Households here earn a median of $101,855 a year, 9% more than the Virginia figure of $93,170.
A typical owner-occupied home is valued at $269,500 (30% below Virginia).

Local data for ZIP 23356

Counts from official public data

Housing and community stats

ZIP 23356, American Community Survey 2020-2024

Full profile

Median household income

$101,855

Poverty rate

0.0%

Median home value

$269,500

Homeownership

96.6%

Bachelor's or higher

35.9%

Median age

52.3

Average commute

39.0 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

$2.7M annual payroll

PPP loans

$249K

7 loans

Campaign donations

$14.3K

76% D, 4% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 23356, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: coastal flooding

Storm events since 1996

343

Countywide, mostly thunderstorm wind

Flood insurance policies

2,660

13.4% of homes, county

July high / Jan low

86° / 30°F

43.3 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 23356, CDC PLACES estimates

All 40 measures

Obesity

34.5%

U.S. 33.3% +1.2 pts

Diabetes

14.6%

U.S. 12.1% +2.5 pts

Smoking

12.2%

U.S. 12.8% -0.6 pts

Uninsured (18-64)

6.5%

U.S. 11.1% -4.6 pts

Frequently asked questions

What city is ZIP code 23356?: ZIP code 23356 is in Greenbackville, VA (Accomack County).
What county is ZIP code 23356 in?: ZIP code 23356 is mostly in Accomack County, Virginia.
How many people live in ZIP code 23356?: About 1,628 people live in the 23356 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.