ZIP Code 03820 - Dover New Hampshire

ZIP Code 03820 is located in Dover New Hampshire. Portions of 03820 are also in Rochester and Madbury and Rollinsford. 03820 is entirely within Strafford County. Regionally, it is located in the Southern New Hampshire Region.

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ZIP Code 03820 Quick Stats

ZIP Code NameDover
Primary CountyStrafford County
ZIP Code TypeStandard
Population (2022)32,925
Area Code(s)603
Current Time
EDT

ZIP Code 03820 Map

03820 Demographics

03820 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in New Hampshire based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 03820 is White. The majority race/ethnicity attending public schools in 03820 is White. The current unemployment level in 03820 is 2.3%.

Population32,925
Population Growth Rate5.62%
Population Density1,079 People per Square Mile
Total Households12,520
Percentage High Income Households3.6%
Median Household Income (2021)$82,464
Average Adjusted Gross Income (2020)$79,700
Current Unemployment Rate (April 2024)2.3%
Majority Race/EthnictyWhite - 90.88%
Public School Majority Race/EthnictyWhite - 82.02%

03820 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White29,44590.88%
Black3871.19%
Hispanic1,1233.47%
Asian1,4464.46%
Native American00%
Hawaiian/Pac. Islander00%

03820 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White3,41286.95%
Black842.14%
Hispanic1142.91%
Asian3017.67%
Native American100.25%
Hawaiian/Pac. Islander30.08%

03820 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College1,1426.22%
Bachelor Degree4,55824.83%
High School Diploma3,90721.29%
No High School Diploma2141.17%
GED or Alternate7263.96%
1 or More Years of College2,79815.24%
Associates Degree2,19511.96%
Masters Degree2,32812.68%
Professional Degree2651.44%
Doctorate Degree2221.21%

03820 Geography

Coordinates43.18948364,-70.88622284
Adjacent ZIP Codes
Cities/Towns in 03820
RegionSouthern New Hampshire Region
Metropolitan/Micropolitan Stat AreaBoston-Cambridge-Newton, MA-NH
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area31 Square Miles

03820 Politics

03820 Weather and Climate Data

Plant Hardiness ZoneZone 5b: -15F to -10F
Average First Frost DateSeptember 21 - 31
Average Last Frost DateMay 11 - 20
Koppen-Geiger Climate ZoneDfb - Humid Continental Mild Summer, Wet All Year
Ecoregion59f - Gulf of Maine Coastal Lowland

03820 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)13162534445358574938302036
Avg Max Temp (°F)33374557697883817362493859
Avg Precip (In.)3.362.933.664.173.663.513.413.443.554.174.543.7344.16

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