Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Sparta, NJ Population, Income & Demographics 2026

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Demographics — 2023 ACS 5-Year Estimatesi

Census

Populationi

19,903

Median Agei

42.2

Race & Ethnicityi

White

82.8%16,478

Hispanic/Latino

8.6%1,706

Asian

3.8%758

Two or More

3.3%651

Black

0.8%158

Other

0.7%146

American Indian/Alaska Native

0%6

Educational Attainment (Age 25+)i

GED/Alternative

1.4%196

High School Diploma

11.2%1,536

Some College (<1 yr)

4.8%660

Some College (1+ yr)

10.9%1,490

Associate's Degree

6.8%933

Bachelor's Degree

38.2%5,221

Master's Degree

17.7%2,417

Professional Degree

4.8%659

Doctorate

2.3%316

HS or Higher

98.3%

BA or Higher

63.1%

Graduate+

24.8%

Housingi

Median Home Valuei

$469,300

Median Renti

$1,844

Tenure

Owner-Occupied

90.4%6,648

Renter-Occupied

9.6%707

Total Units

7,789

Homeownership

90.4%

Vacancy Rate

5.6%

Home Values

Under $50K

1.9%128

$50K–$100K

1.6%108

$100K–$150K

0.6%42

$150K–$200K

1.8%120

$200K–$300K

5.5%364

$300K–$500K

45.3%3,013

$500K–$1M

37.7%2,503

$1M+

5.6%370

Rent Distribution

Under $500

$500–$750

$750–$1,000

$1,000–$1,250

$1,250–$1,500

$1,500–$2,000

189

$2,000+

273

Year Built

2020 or later

0.7%51

2010–2019

1.7%133

2000–2009

12.4%968

1990–1999

12.6%985

1980–1989

13%1,010

1970–1979

12.8%999

1960–1969

10.5%816

1950–1959

13%1,012

1940–1949

6.7%525

1939 or earlier

16.6%1,290

Heating Fuel

Fuel Oil

48.8%3,589

Utility Gas

25.7%1,887

Bottled/LP Gas

14.6%1,071

Electricity

7.9%584

Other

1.5%109

Wood

1.1%83

No Fuel

0.3%23

Coal

0.1%9

Economyi

Median Household Incomei

$167,371

Mean Household Incomei

$205,915

Per Capita Incomei

$76,132

Poverty Ratei

3.1%

Unemploymenti

4.2%

Labor Forcei

10,878

Household Income Distribution

Under $10K

2.4%178

$10K–$15K

0.4%30

$15K–$20K

0.4%29

$20K–$25K

1.3%96

$25K–$30K

1.2%86

$30K–$35K

0.8%59

$35K–$40K

1.9%141

$40K–$45K

0.2%18

$45K–$50K

1.8%133

$50K–$60K

4%291

$60K–$75K

4.4%327

$75K–$100K

8.4%617

$100K–$125K

7.7%567

$125K–$150K

9.2%674

$150K–$200K

16.2%1,193

$200K+

39.6%2,916

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Foreign-Born Populationi

Foreign-Borni

1,8919.5%

By Region

Top Countries

Poland

193

India

159

United Kingdom

Philippines

Germany

Korea

China

Canada

Commute & Transportationi

Workersi

10,341

Avg. Commutei

37.9 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

10,419

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

650(4.3% of civilian adults)

Health Insurancei

97.3%Insured

2.7%Uninsured