| City: | Flagtown, New Jersey |
| County: | Somerset County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 8:27:32 PM |
| Population: | 391 [See All] |
| Area Codes: | 732 / 848 |
| Classification: | PO Box |
| Coordinates: | 40.5206, -74.6820 |
| Land Area: | 0.238 sq mi |
| Quick Link: |
The community's delivery infrastructure includes two rural routes covering 11 streets with names like First through Tenth Street, suggesting an early grid layout. Median household income reaches $122,857, well above state averages, and median home values sit at $446,700. About 40.9% of residents have bachelor's degrees or higher. The post office also handles mail for 42 businesses in the area, though this is primarily a residential community with a median age of 43.4 years.
The numbered street grid (First through Tenth Street) reveals a planned community layout typical of late 19th or early 20th century town development in New Jersey. The sequential naming suggests an organized settlement pattern rather than organic rural growth.
ZIP Code 08821 has 391 residents and 145 households (average 2.70 persons per household). The median age is 43.4 years, older than the state (39.9) and older than the nation (38.8). The gender split is 58.1% male and 41.9% female, which is much higher than the state male share (48.6%), making this a male-majority area. Largest groups are White (83.4%, much higher than the state average of 55.0% and well above the national average of 61.6%) and Hispanic or Latino (9.7%); Hispanic or Latino residents make up 9.7%, which is much lower than the state average (21.6%).
Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship
| 2020 Population: | 391Source: Census DHC |
| 2024 ACS Population Estimate: | 283Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,642.9 people per sq mile |
| Average Income: | $155,833Source: Census ACS |
| Households: | 145Source: Census DHC |
| Average House Value: | $443,300Source: Census ACS |
| Persons Per Household: | 2.70Source: Census DHC |
| Average Family Size: | 2.85Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 409 | 424 | 289 | 160 | 265 | 362 | 342 | 377 | 436 | 481 | 548 | 514 | 375 | 283 |
| Decennial Census | 354 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 391 | -- | -- | -- | -- |
Median Age: 43.4
Male Median Age: 42.8
Female Median Age: 43.7
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 11 | 6 | 22 | 17 | 17 | 15 | 4 | 9 | 18 | 19 | 4 | 28 | 18 | 19 | 16 | 4 | 0 | 0 |
| Female | 11 | 13 | 18 | 8 | 4 | 13 | 2 | 0 | 17 | 11 | 10 | 8 | 6 | 22 | 7 | 0 | 8 | 6 |
| Total | 22 | 19 | 40 | 25 | 21 | 28 | 6 | 9 | 35 | 30 | 14 | 36 | 24 | 41 | 23 | 4 | 8 | 6 |
| White: | 326 | 82.53% |
| Black: | 3 | 0.76% |
| Hispanic:* | 38 | 9.62% |
| Asian: | 20 | 5.06% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 8 | 2.03% |
| Total: | 395 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 227 | 58.06% | 42.8 years |
| Females: | 164 | 41.94% | 43.7 years |
| Total: | 391 | 100% | 43.4 years |
| Native, born in the United States: | 276 | 97.53% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 7 | 2.47% |
| Foreign born, not a U.S. citizen: | 0 | 2.47% |
| Total Population: | 283 | 100% |
| Total Native Population: | 276 | 97.53% |
| Total Foreign-born Population: | 7 | 2.47% |
In 2024, the Median household income is $155,833, which is much higher than the national median ($78,538), is up $98,627 (172.4%) since 2011 and above its 2019 pre-pandemic level by $99,520. Family households earn a median of $156,667 versus $0 for nonfamily households (a difference of $156,667). By gender, male median income is $69,405 and female is $0, which is considerably lower than the national female median ($53,445), with a current gap of $69,405 that has widened from 2011 to 2024. The labor-force participation rate is 77.7%, which is far greater than the national rate (63.5%). The unemployment rate is 0.0%, which is markedly below the national rate (5.2%). The largest occupation group is Management (47.0%).
Explore More: Income Over Time Household Income Employment Status By Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $57,206 | $81,250 | $113,250 | $107,273 | $77,417 | $54,868 | $53,859 | $55,573 | $56,313 | $71,923 | $103,199 | $118,333 | $122,857 | $155,833 |
| Median Family Income | $54,706 | $78,750 | $113,250 | $107,273 | $0 | $54,868 | $53,859 | $56,250 | $56,875 | $75,417 | $103,566 | $119,028 | $124,286 | $156,667 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $81,429 | $80,580 | $82,750 | $105,313 | $0 | $0 | $0 | $65,104 | $55,278 | $57,829 | $73,594 | $64,813 | $65,926 | $69,405 |
| Median Female Income | $24,600 | $24,784 | $24,519 | $0 | $0 | $56,346 | $0 | $79,375 | $77,656 | $80,588 | $0 | $0 | $0 | $0 |
| Employed: | 164 | 77.73% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 47 | 22.27% |
| Total: | 211 | 100% |
| Management, business, science, and arts: | 77 | 46.95% |
| Service: | 34 | 20.73% |
| Sales and Office: | 43 | 26.22% |
| Natural resources, construction, and maintenance: | 10 | 6.10% |
| Production, transportation, and material moving: | 0 | 0.00% |
| Total Civilian Employed Population: | 164 | 100% |
In 2024, the median home value is $443,300, which is markedly greater than the national median ($303,400), is up $180,100 (68.43%) since 2011 and above its 2019 pre-pandemic level by $67,600. The median gross rent is $0, which is well under the national median ($1,348), and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 87.04% (89.36% with a mortgage, 10.64% free-and-clear) and renters 12.96% - making this ZIP Code under national rental averages. The vacancy rate is 0.00%, which is much lower than the national rate (10.43%).
Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $263,200 | $275,000 | $236,600 | $235,700 | $246,400 | $344,000 | $350,000 | $365,000 | $375,700 | $394,700 | $433,700 | $472,600 | $446,700 | $443,300 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 14 | 100.00% |
| Total: | 14 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 84 | 77.78% |
| Owner Occupied (free and clear, no mortgage): | 10 | 9.26% |
| Renter Occupied: | 14 | 12.96% |
| Total Occupied Housing Units: | 108 | 100% |
| Occupied Housing Units: | 108 | 100.00% |
| Vacant Housing Units (not graphed): | 0 | 0.00% |
| Total Housing Units: | 108 | 100% |
| Single-Family Units: | 108 | 100.00% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 108 | 100% |
In 2024, 35.10% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.00%). High school or higher is 91.00%, which is comparable to the national rate (89.40%). The uninsured rate is 0.00%, which is comparable to the national rate (8.60%). Private coverage is 100.00%, which is well above the national rate (67.30%). Public coverage is 18.70%, which is falls below the national rate (36.30%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.70%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is elementary (100.00%). College enrollment is 0.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment
| Less than 9th grade: | 9 | 4.27% |
| 9th to 12th grade, no diploma: | 10 | 4.74% |
| High school graduate (includes equivalency): | 31 | 14.69% |
| Some college, no degree: | 10 | 4.74% |
| Associate's degree: | 77 | 36.49% |
| Bachelor's degree: | 21 | 9.95% |
| Graduate or professional degree: | 53 | 25.12% |
| Total: | 211 | 100% |
| High school or higher: | 192 | 91.00% |
| Bachelor's degree or higher: | 74 | 35.07% |
| Private Insurance: | 283 | 84.23% |
| Public Insurance: | 53 | 15.77% |
| No Insurance: | 0 | 0.00% |
| Total: | 336 | 100% |
| Has Health Insurance: | 336 | 100.00% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 46 | 100.00% |
| High school (grades 9-12): | 0 | 0.00% |
| College or graduate school: | 0 | 0.00% |
| Total: | 46 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 46 | 100.00% |
ZIP Code 08821 supports both business and residential activity. According to the Business Census (2024), there are 9 business establishments, employing about 53 people with an annual payroll of $3,288,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 4,592Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 9Source: CBP |
| 1st Quarter Payroll: | $985,000Source: CBP |
| Annual Payroll: | $3,288,000Source: CBP |
| # of Employees: | 53Source: CBP |
ZIP Code 08821 is located in Somerset County, New Jersey, within the New York-Newark-Jersey City, NY-NJ Metropolitan Statistical Area (CBSA 35620) and New Jersey's 12nd Congressional District. This Metro area has a population of 18,897,109 people, about 0.00% of whom live in ZIP Code 08821, and is subdivided into the Lakewood-New Brunswick, NJ division. It covers 0.238 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | New York-Newark-Jersey City, NY-NJSource: Census |
| CBSA Number: | 35620Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Lakewood-New Brunswick, NJ (CBSA Div 29484)Source: Census |
| CBSA Population: | 18,897,109Source: Census |
| MSA: | New York-Northern New Jersey-Long Island, NY-NJ-CT-PASource: Census |
| Land Area: | 0.238 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 12Source: USPS |
| Congressional Land Area: | 412.23 sq miSource: Census |
| PMSA: | Middlesex-Somerset-Hunterdon, NJ PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 3423610Source: Census |
| Place Name: | Flagtown CDP; New JerseySource: Census |
We could not locate which school district 08821 belongs to, but we will update this once new district data is released. There are 0 public schools with a nearby mailing address, but we have located 5 public schools nearby. There are however 1 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.