Census tract · Morris County
Census Tract 421, Morris County, New Jersey
Census Tract 421, GEOID 34027042100, in Morris County, New Jersey, entirely within Hanover Township. 4,251 residents in the ACS 2020-2024 5-year estimates (±433); the 2020 Census counted 4,173.
Residents, 2020-2024
4,251
±433 (90% margin)
2020 Census count: 4,173
Median household income
$165,568
±$18,237 (90% margin)
Morris County: $137,326
Median home value
$632,900
±$24,122 (90% margin)
Morris County: $582,500
Median gross rent
$3,077
±$351 (90% margin)
Morris County: $1,904
Where is Census Tract 421?
Census Tract 421 is one of 110 census tracts in Morris County, New Jersey. It covers 3.60 square miles of land, 1,158 residents per square mile in 2020. Its GEOID, 34027042100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Hanover Township | 100% |
| Whippany | 77% |
6 census tracts border Census Tract 421: Tract 419.02 ($156,023), Tract 420 ($148,714), Tract 422 ($166,310), Tract 426.01 ($154,663), Tract 433.01 ($176,111) and Tract 433.02 ($174,803). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 421?
The 2020-2024 American Community Survey puts Census Tract 421's population at 4,251 (±433) in 1,555 households; the 2020 Census counted 4,173 residents and 1,668 housing units.
| Measure | Tract 421 | Hanover Township |
|---|---|---|
| Total population | 4,251 ±433 | 14,769 |
| Households | 1,555 ±187 | 5,835 |
| Average household size | 2.66 ±0.16 | 2.50 |
| Housing units | 1,575 ±182 | 5,902 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 421?
The median resident of Census Tract 421 is 48.1 years old; 21.2% are under 18 and 19.8% are 65 or older. The largest group is non-Hispanic white residents at 68.1%, then Hispanic or Latino residents (of any race) at 13.2%. 16.1% of residents were born outside the United States.
| Measure | Tract 421 | Hanover Township |
|---|---|---|
| Median age | 48.1 ±2.2 | 48.0 |
| Under 18 years | 21.2% ±3.2 pts | 18.4% |
| 65 years and over | 19.8% ±2.6 pts | 20.9% |
| Hispanic or Latino (any race) | 13.2% ±5.6 pts | 11.2% |
| White alone, not Hispanic | 68.1% ±5.4 pts | 67.3% |
| Black or African American alone, not Hispanic | 0.3% ±0.6 pts | 0.9% |
| Asian alone, not Hispanic | 12.4% ±4.6 pts | 15.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 2.6% ±1.8 pts | 3.4% |
| Some other race alone, not Hispanic | 3.5% ±4.1 pts | 1.7% |
| Born outside the United States | 16.1% ±5.0 pts | 21.2% |
| Speak a language other than English at home (age 5+) | 22.3% ±7.7 pts | 29.0% |
| Civilian veterans (age 18+) | 2.2% ±1.4 pts | 2.5% |
| With a disability | 9.5% ±3.6 pts | 9.6% |
| No health insurance coverage | 1.2% ±1.0 pts | 3.9% |
| High school graduate or higher (age 25+) | 97.8% ±1.5 pts | 95.3% |
| Bachelor's degree or higher (age 25+) | 62.5% ±5.4 pts | 56.3% |
| Graduate or professional degree (age 25+) | 29.1% ±6.4 pts | 25.7% |
| Lived in the same house a year earlier | 96.3% ±1.7 pts | 93.2% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 421 earn?
Half of the 1,555 households in Census Tract 421 earn less than $165,568 a year (±$18,237), against $137,326 across Morris County: 42nd highest of the county's 109 tracts with a reliable estimate.
| Measure | Tract 421 | Hanover Township |
|---|---|---|
| Median household income | $165,568 ±$18,237 | $156,956 |
| Mean household income | $216,030 ±$32,646 | $188,444 |
| Per capita income | $78,930 ±$13,421 | $74,541 |
| People below the poverty line | 0.8% ±0.7 pts | 3.2% |
| Children under 18 below the poverty line | 0.0% ±4.9 pts | 1.6% |
| Households receiving SNAP | 1.1% ±1.2 pts | 1.8% |
| Households with a computer | 99.5% ±0.8 pts | 98.2% |
| Households with a broadband subscription | 98.5% ±1.7 pts | 96.6% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 421?
Owners occupy 95.2% of Census Tract 421's occupied homes and renters 4.8%. The median owner-occupied home is valued at $632,900 by its owner (±$24,122). The median renter pays $3,077 a month including utilities.
| Measure | Tract 421 | Hanover Township |
|---|---|---|
| Median home value (owner-occupied) | $632,900 ±$24,122 | $629,600 |
| Median gross rent | $3,077 ±$351 | $2,813 |
| Renters paying 35% or more of income on rent | 36.4% ±31.7 pts | 39.5% |
| Median monthly owner costs, with a mortgage | $3,116 ±$272 | $2,947 |
| Owner-occupied homes | 95.2% ±3.1 pts | 79.0% |
| Renter-occupied homes | 4.8% ±3.1 pts | 21.0% |
| Housing units | 1,575 ±182 | 5,902 |
| Single-family detached homes | 74.8% ±5.7 pts | 64.1% |
| Mobile homes | 0.0% ±2.8 pts | 0.0% |
| Built 2020 or later | 0.0% ±2.8 pts | 1.0% |
| Built 2010 to 2019 | 0.0% ±2.8 pts | 8.5% |
| Built 1939 or earlier | 1.7% ±1.8 pts | 5.5% |
| Households with no vehicle | 2.6% ±2.1 pts | 3.8% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 421 get to work?
67.2% of Census Tract 421's workers drive alone and 25.7% work from home. The average trip to work takes 21.2 minutes. The unemployment rate in 2020-2024 averaged 4.9%.
| Measure | Tract 421 | Hanover Township |
|---|---|---|
| In the labor force (age 16+) | 64.8% ±5.2 pts | 65.8% |
| Unemployment rate | 4.9% ±3.1 pts | 2.6% |
| Drove alone to work | 67.2% ±7.7 pts | 66.3% |
| Carpooled | 5.6% ±3.3 pts | 7.8% |
| Public transportation | 1.0% ±1.3 pts | 1.2% |
| Walked | 0.5% ±0.8 pts | 0.2% |
| Worked from home | 25.7% ±7.5 pts | 24.4% |
| Mean travel time to work | 21.2 min ±2.7 | 23.9 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 421 compare with the other tracts in Morris County?
Among Morris County's tracts with a reliable estimate, Census Tract 421 ranks as shown below (1 = highest).
| Measure | In Morris County |
|---|---|
| Population | 69th of 110 |
| Residents per square mile | 79th of 110 |
| Median household income | 42nd of 109 |
| Per capita income | 33rd of 110 |
| Median home value | 44th of 110 |
| Median gross rent | 11th of 97 |
| Bachelor's degree or higher | 48th of 110 |
| Median age | 16th of 110 |
| Owner-occupied share | 14th of 110 |
The tracts next to it on Morris County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 416.04 | 39th | $166,694±$33,169 · within the margin of this tract |
| Tract 422 | 40th | $166,310±$31,614 · within the margin of this tract |
| Tract 441.02 | 41st | $165,720±$26,402 · within the margin of this tract |
| Tract 421 | 42nd | $165,568±$18,237 |
| Tract 430 | 43rd | $160,139±$33,321 · within the margin of this tract |
| Tract 438.01 | 44th | $160,091±$59,064 · within the margin of this tract |
| Tract 408.04 | 45th | $159,978±$37,633 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 421?
2 of the 18 figures for Census Tract 421 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections