Onancock, VA

Town in Accomack County, VA, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

1,433

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

44.5

years ∙ half population younger than 44.5, half older

Diversity Index

56.1%

chance two random people differ in race and ethnicity

Nativity

1.2%

foreign-born population

98.8%Native

1.2% Foreign-born

Geographic Context

Location, size, and surroundings

About

Onancock is a town within Accomack County, Virginia, United States.

Location

Town in Accomack County, VA, US

Co-ordinates

DEC37.709993° N, 75.743670° W

DMS37° 42′ 35.97″ N, 75° 44′ 37.21″ W

Population Density & area

1,365/sq mi (528.8/km²)

Total Area

1.05 sq mi (2.72 km²)

Land Area

1.05 sq mi (2.71 km²) · 99.72%

Water Area

0 sq mi (0.01 km²) · 0.28%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

40.2% male

Male 40.2%

Female 59.8%

males per 100 females

Onancock 67.2

Accomack County 96.4

Virginia 97.6

Nativity

1.2%

foreign-born population

98.8%Native

1.2% Foreign-born

% Foreign-born

Onancock 1.2%

Accomack County 8.5%

Virginia 13.1%

Age Distribution

How the population is spread across age groups

Median Age

44.5

years ∙ half population younger than 44.5, half older

Onancock

44.5

Accomack County

47.6

Virginia

Dependency ratio

140

dependents per 100 working-age adults

Onancock 140

Accomack County 85.9

Virginia 62.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Onancock	Accomack County	Virginia
Age Group
Children (Under 18)	24.9%	20.5%	21.7%
Working age (18-64)	41.7%	53.8%	61.6%
Senior (65+)	33.4%	25.7%	16.7%
Dependency ratio
Total dependency ratio	140	85.9	62.4
Child dependency ratio	59.8	38.1	35.3
Old-age dependency ratio	80.2	47.8	27.1

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

54.1%

Black

37.8%

Asian

0.2%

Hispanic

3.3%

Other

4.6%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

56.1%

chance two random people differ in race and ethnicity

Onancock 56.1%

Accomack County 57.6%

Virginia 60.6%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Onancock population

	Onancock	Accomack County	Virginia
Hispanic or Latino	3.3%	10.9%	11%
Mexican	0.2%	5.5%	2.4%
Puerto Rican	1.6%	0.8%	1.4%
Cuban	0%	0.2%	0.3%
Other Hispanic / Latino	1.5%	4.4%	6.9%
Not Hispanic or Latino	96.7%	89.1%	89%
One race	92.3%	86.3%	84.3%
White	54.1%	58.1%	58.4%
Black or African American	37.8%	27.1%	18.3%
American Indian and Alaska Native	0.1%	0.1%	0.1%
Asian	0.2%	0.7%	6.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.1%
Some Other Race	0.1%	0.3%	0.6%
Two or more races (Multiracial)	4.4%	2.8%	4.7%

Household & Families Composition

Household size, type, and family structure

Household structure

61.3% family

Family 61.3%

Non family 38.7%

% family households

Onancock 61.3%

Accomack County 63.7%

Virginia 64.8%

Average household size

2.1

persons per household

Onancock

2.1

Accomack County

2.22

Virginia

2.52

Household & Family COMPOSITION

Households

Percentage of Onancock population

	Onancock	Accomack County	Virginia
Total households	680	14,446	3,365,732
Average houshold size	2.1	2.22	2.52
Family households	417	9,205	2,181,475
Average family size	2.69	2.8	3.11
Married couple family	258	6,568	1,638,116
Other families	159	2,637	543,359
Male householder	5	1,014	154,457
Female householder	154	1,623	388,902
Non-family households	263	5,241	1,184,257
One-person households	246	4,891	958,467
Male householder	71	2,134	417,934
Senior (65+) living alone	46	947	127,348
Female householder	175	2,757	540,533
Senior (65+) living alone	136	1,873	258,856
Other living arrangements	17	350	225,790

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

911

housing units

Onancock 911

Accomack County 22,052

Virginia 3,684,756

Occupancy status

74.6% occupied

Occupied 74.6%

Vacant 25.4%

vacancy rate

Onancock 25.4%

Accomack County 34.5%

Virginia 8.7%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

79.1%

Single family houses

79.1%

Apartments in multi-unit structures

19.7%

Mobile homes

1.1%

Boat, RV, van, etc

Median Year Built

1957

Half of houses were built before 1957, and half after.

Historic ∙ 1939 or earlier

31.1%

Postwar & mid-century ∙ 1940 - 1969

42.2%

Late 20th century ∙ 1970 - 1999

12.1%

Modern ∙ 2000 or later

14.7%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Onancock	Accomack County	Virginia
Rooms per unit
Median rooms	6	5.5	6
1–3 rooms	8.7%	10%	11.6%
4–6 rooms	52.5%	60.9%	46.2%
7+ rooms	38.9%	29.1%	42.3%
Bedrooms
No bedroom / studio	3.5%	0.8%	1.9%
1 bedroom	7.9%	7.2%	8.7%
2 bedrooms	23.5%	30.4%	22.3%
3 bedrooms	45.9%	47.4%	38.4%
4+ bedrooms	19.2%	14.1%	28.7%
At a glance
Median year built	1957	1981	1985
Total housing units	911	22,052	3,684,756

Occupancy Profile

Who is inside and how they use it

Homeownership

60.4% owners

Renter-occupied 39.6%

Owner-occupied 60.4%

homeownership rate

Onancock 60.4%

Accomack County 71.4%

Virginia 67.3%

Average household size

2.18

Owner-occupied

1.97

Renter-occupied

owner-occupied average size

Onancock 2.18

Accomack County 2.19

Virginia 2.62

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Onancock	Accomack County	Virginia
Total occupied units	680	14,446	3,365,732
Year moved in
2020 or later	31.8%	22.2%	25.7%
2010 to 2019	35.9%	33.6%	38.5%
2000 to 2009	11.9%	17.2%	16.6%
1999 or earlier	20.5%	27%	19.1%
Occupants per room
1.00 or fewer	100%	98.8%	97.9%
1.01 to 1.50	0%	1.2%	1.4%
1.51 or more	0%	0.1%	0.7%
Vehicles availability
No vehicles	10.3%	6.1%	6.1%
1 vehicle	34.7%	31.9%	31.1%
2 vehicles	37.6%	34%	37.3%
3 or more vehicles	17.4%	28.1%	25.5%
House heating fuel used
Gas	13.5%	22.9%	36.6%
Electricity	73.5%	62.8%	57.5%
Solar	0%	0%	0.2%
Fuel oil, kerosene etc	8.5%	12.1%	3.2%
All other fuels	0%	1.6%	1.9%
No fuel used	4.4%	0.6%	0.6%
Selected characteristics
Lacking complete plumbing	0%	0.4%	0.3%
Lacking complete kitchen	1.2%	0.5%	0.6%
No telephone service available	1.5%	1.6%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$294,400

owner-occupied units

Median value(USD)

Onancock

$294,400

Accomack County

$204,300

Virginia

$383,700

Housing Cost Burden

30.5%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

30.5%

Owners without a mortgage

31.4%

Renters

37.2%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Onancock	Accomack County	Virginia
Property value
Median Value	$294,400	$204,300	$383,700
Under $100,000	12.2%	17.7%	7.6%
$100,000 - $200,000	10.7%	31.6%	11.5%
$200,000 - $300,000	28%	19.4%	17.2%
$300,000 - $500,000	33.8%	22.1%	29.6%
$500,000 - $1,000,000	14.4%	7.7%	26.8%
$1,000,000 and more	1%	1.7%	7.2%
Owner-occupied households
With a mortgage	48.7%	42.7%	66.9%
Without a mortgage	51.3%	57.3%	33.1%
Median monthly owner costs
With a mortgage	$1,425	$1,488	$2,127
Without a mortgage	$659	$442	$589
Gross rent
Median rent	$904	$977	$1,579

Education Profile

How educated is the community and how education pays off

Adults with a college degree

40.1%

of adults 25+ with a bachelor's degree or higher

Onancock 40.1%

Accomack County 21.7%

Virginia 42.2%

Adults without a high school diploma

10.1%

of adults (25+) without a high school diploma

Onancock 10.1%

Accomack County 16.4%

Virginia 8.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

291

population (age 3+) enrolled in school

Nursery / Preschool

14.8%

K–12

69.4%

College / Undergraduate

11%

Graduate / Professional

4.8%

College-going rate (18-24 yr olds)

of 18-24-year-olds in college or graduate school

Onancock

Accomack County

27.8%

Virginia

42.7%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Onancock	Accomack County	Virginia
Total enrolled (age 3+)	291	6,658	2,095,439
Nursery / preschool	14.8%	6.4%	5.3%
K–12	69.4%	75.5%	65.9%
Kindergarten	3.4%	3.3%	5%
Elementary: Grades 1–4	22.7%	22.6%	19.4%
Elementary: Grades 5–8	27.8%	22.9%	20.3%
High School: Grades 9–12	15.5%	26.7%	21.2%
College or graduate school	15.8%	18.1%	28.8%
College, undergraduate	11%	13.4%	21.9%
Graduate, professional school	4.8%	4.7%	6.9%
College-going rate · 18-24 yr olds	0%	27.8%	42.7%
School type
Public school	79.4%	85.1%	81%
Private school	20.6%	14.9%	19%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

1,009

population 25 years and over

Total adults (25+)

Less than 9th grade

5.1%

9th-12th, no diploma

HS graduate

27.6%

Some college no degree

14.7%

Associates degree

7.6%

Bachelors degree

17%

Graduate or professional degree

23.1%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

27.5% · 72.5%

9th-12th, no diploma

18% · 82%

HS graduate

40.3% · 59.7%

Some college no degree

27.7% · 72.3%

Associates degree

33.8% · 66.2%

Bachelors degree

36.6% · 63.4%

Graduate or professional degree

49.4% · 50.6%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Onancock	Accomack County	Virginia
Population (25+)	1,009	24,260	6,007,678
Less than 9th grade	5.1%	6.8%	3.6%
9th–12th, no diploma	5%	9.6%	4.8%
High school diploma or GED	27.6%	35.5%	23.9%
Some college, no degree	14.7%	18.8%	17.7%
Associate's degree	7.6%	7.5%	7.8%
Bachelor's degree or higher	40.1%	21.7%	42.2%
Bachelor's degree	17%	13%	23.7%
Graduate or professional	23.1%	8.7%	18.5%
High School or higher	90%	83.6%	91.6%

Earnings by education level

percentage as applicable

Median Earnings

$42,386

Median earnings for adults 25+, by level

Less than HS graduate

$—

HS graduate

$37,617

Some college or associates

$34,968

Bachelors degree

$86,354

Graduate or professional degree

$82,708

Poverty Rate

2.7%

for ages 25+, with bachelors degree or higher

Less than HS graduate

40.6%

HS graduate

30.2%

Some college or associates

11.6%

Bachelors degree or higher

2.7%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Onancock	Accomack County	Virginia
Median earnings
Population 25+, with earnings	$42,386	$41,083	$59,471
Less than high school graduate	$—	$31,674	$33,905
High school graduate (includes equivalency)	$37,617	$36,846	$41,243
Some college or associate's degree	$34,968	$41,785	$49,185
Bachelor's degree	$86,354	$54,674	$76,425
Graduate or professional degree	$82,708	$67,366	$102,924
Poverty rates
Less than high school graduate	40.6%	30.3%	21.8%
High school graduate (includes equivalency)	30.2%	14.4%	12.6%
Some college or associate's degree	11.6%	8.4%	8.1%
Bachelor's degree or higher	2.7%	7.5%	3.4%

Insights for Onancock, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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