New Jersey Assembly District 40

State Legislative District Profile (Lower Chamber)

Overview

District ID
nj-hd-040
State
New Jersey
Chamber
Lower chamber
District Code
040
Land Area
86.4 sq mi
Water Area
2.72 sq mi

Boundary

Boundary of New Jersey Assembly District 40

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Passaic County36.77 sq mi42.5%19.8%
Essex County27.91 sq mi32.3%22.1%
Bergen County21.75 sq mi25.2%9.3%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Franklin Lakes borough9.41 sq mi10.9%100.0%
Ridgewood village5.74 sq mi6.6%100.0%
Preakness CDP5.67 sq mi6.6%100.0%
Totowa borough4.00 sq mi4.6%100.0%
Hawthorne borough3.32 sq mi3.8%100.0%
North Caldwell borough3.07 sq mi3.5%100.0%
Woodland Park borough2.94 sq mi3.4%100.0%
Packanack Lake CDP1.86 sq mi2.2%100.0%
Essex Fells borough1.41 sq mi1.6%100.0%
Pines Lake CDP1.34 sq mi1.6%100.0%
Caldwell borough1.18 sq mi1.4%100.0%
Great Notch CDP0.99 sq mi1.1%100.0%
Singac CDP0.46 sq mi0.5%100.0%
Montclair State University CDP0.31 sq mi0.4%87.7%
William Paterson University of New Jersey CDP0.24 sq mi0.3%100.0%

Showing all 15 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
NJ District 11118,64051.5%15.3%55.9%
NJ District 943,38118.8%5.6%23.6%
NJ District 542,56418.5%5.5%14.3%
NJ District 1025,84311.2%3.3%6.2%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
187,760
Active Voters
176,598 (94.1%)

Party Registration

PartyVotersShare
Democratic59,53731.7%
Republican60,71032.3%
Unaffiliated66,00535.2%
Other parties1,5080.8%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–2026104,496 (55.7%)20,958 (11.2%)16,871 (9.0%)
2023–2024132,353 (70.5%)16,444 (8.8%)15,654 (8.3%)
2021–2022100,394 (53.5%)11,750 (6.3%)15,019 (8.0%)
2019–2020133,333 (71.0%)21,472 (11.4%)15,109 (8.0%)
2017–201896,114 (51.2%)13,944 (7.4%)14,280 (7.6%)
2015–2016105,146 (56.0%)16,077 (8.6%)14,058 (7.5%)
2013–201465,571 (34.9%)6,901 (3.7%)7,945 (4.2%)
2011–201285,792 (45.7%)4,667 (2.5%)6,217 (3.3%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 01/02/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
231,825 (± 96)
Median Age
42.6
Median Household Income
$147,402 (± $3,319)
High School Graduate or Higher (age 25+)
96.2%
Bachelor's Degree or Higher (age 25+)
60.4%

Population by Age

GroupPeopleShare
Under 1851,85522.4%
18 to 64134,65558.1%
65 and over45,31519.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)33,85914.6%
White, not Hispanic163,34670.5%
Black, not Hispanic6,4642.8%
Asian, not Hispanic18,9448.2%
American Indian / Alaska Native, not Hispanic1570.1%
Native Hawaiian / Pacific Islander, not Hispanic360.0%
Some other race, not Hispanic1,1280.5%
Two or more races, not Hispanic7,8913.4%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
219,476
Citizen Voting Age Population (CVAP)
169,170

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic189,23086.2%
Hispanic30,24513.8%
White162,29273.9%
Black6,2902.9%
Asian15,0216.8%
American Indian / Alaska Native1610.1%
Native Hawaiian / Pacific Islander60.0%
Two or More Races5490.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic149,27788.2%
Hispanic19,89511.8%
White130,27677.0%
Black5,8413.5%
Asian12,4027.3%
American Indian / Alaska Native5150.3%
Native Hawaiian / Pacific Islander70.0%
Two or More Races2890.2%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).