ZIP Code Tabulation Area · New Hampshire

ZIP Code 03740: Grafton County, NH

ZIP Code 03740 (Grafton County, New Hampshire) has an estimated 1,097 residents in 441 households. The median household income is $67,813, the median home value is $234,400 and the median gross rent is $1,438/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated

Total population

1,097

Margin of error ±177

Median household income

$67,813

Margin of error ±$22,045

Median home value

$234,400

Margin of error ±$23,239

Median gross rent

$1,438/mo

Margin of error ±$309

Median age

48.6 yrs

Margin of error ±8.6 yrs

Mean travel time to work

25.6 min

Margin of error ±9.7 min

How ZIP 03740 compares with New Hampshire and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 0374048.6 yrsNew Hampshire43.3 yrsUnited States38.9 yrs

Median household income

ZIP 03740$67,813New Hampshire$99,031United States$80,734

Per capita income

ZIP 03740$36,755New Hampshire$52,798United States$44,673

Poverty rate

ZIP 037408.1%New Hampshire7.2%United States12.5%

Unemployment rate

ZIP 037403.9%New Hampshire3.3%United States5.2%

Bachelor's degree or higher

ZIP 0374026.8%New Hampshire40.6%United States35.7%

Median home value

ZIP 03740$234,400New Hampshire$402,500United States$332,700

Median gross rent

ZIP 03740$1,438/moNew Hampshire$1,491/moUnited States$1,413/mo

Owner-occupied homes

ZIP 0374090.9%New Hampshire72.8%United States65.2%

Mean travel time to work

ZIP 0374025.6 minNew Hampshire26.7 minUnited States26.4 min

Worked from home

ZIP 0374011.1%New Hampshire16.8%United States15.1%

All figures for ZIP 03740

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 03740 — ACS 2020–2024 5-year estimates
MeasureZIP 03740Margin of errorNew HampshireUnited States
Total population1,097±1771,394,868334,922,499
Median age48.6 yrs±8.6 yrs43.3 yrs38.9 yrs
Households441±72555,822129,227,496
Median household income$67,813±$22,045$99,031$80,734
Per capita income$36,755±$4,274$52,798$44,673
Poverty rate8.1%±7.1 pts7.2%12.5%
Unemployment rate3.9%±4.9 pts3.3%5.2%
Bachelor's degree or higher26.8%±4.8 pts40.6%35.7%
Median home value$234,400±$23,239$402,500$332,700
Median gross rent$1,438/mo±$309$1,491/mo$1,413/mo
Owner-occupied homes90.9%±5.6 pts72.8%65.2%
Mean travel time to work25.6 min±9.7 min26.7 min26.4 min
Worked from home11.1%±3.2 pts16.8%15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 03740
GroupZIP 03740New HampshireUnited States
White alone, not Hispanic or Latino96.2%86.9%57.4%
Black or African American alone, not Hispanic or Latino0.0%1.3%11.9%
American Indian and Alaska Native alone, not Hispanic or Latino0.1%0.1%0.5%
Asian alone, not Hispanic or Latino0.0%2.6%5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino0.0%0.0%0.2%
Some other race alone, not Hispanic or Latino0.0%0.4%0.6%
Two or more races, not Hispanic or Latino2.8%4.0%4.3%
Hispanic or Latino (of any race)0.9%4.7%19.3%

Where ZIP 03740 is

State
New Hampshire
Main county
Grafton County
Largest overlapping place
Mountain Lakes (2% of the ZIP's land area)
Land area
37.19 sq mi· about 29 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Grafton County

03266 Grafton County, NH03279 Grafton County, NH03282 Grafton County, NH03285 Grafton County, NH03293 Grafton County, NH03561 Grafton County, NH03574 Grafton County, NH03580 Grafton County, NH03585 Grafton County, NH03586 Grafton County, NH03741 Grafton County, NH03748 Grafton County, NH03750 Grafton County, NH03755 Grafton County, NH03765 Grafton County, NH03766 Lebanon, NH03768 Grafton County, NH03771 Grafton County, NH03774 Grafton County, NH03777 Grafton County, NH03779 Grafton County, NH03780 Grafton County, NH03784 Lebanon, NH03785 Grafton County, NH

See every ZIP code in New Hampshire, or compare ZIP 03740 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

  • U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
  • U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
  • Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.