ZIP code profile · 2024 county data

ZIP Code 03766

Grafton County, New Hampshire: Census demographics for this ZIP plus the containing county's FBI UCR crime rate.

Data updated 2026-09-05

10,334
Population (ZIP)
0
Violent rate /100K (county)
0
Property rate /100K (county)

Is ZIP code 03766 safe? Honest data snapshot

ZIP code 03766 sits within Grafton County, NH, in which law-enforcement agencies did not report complete 2024 data to the FBI UCR Program. The county figures below cover only the agencies that submitted, so they are not a measure of crime in this area and no comparison to the national average is drawn from them.

ZIP 03766 is the largest ZIP in Grafton County by population, 10,334 residents (#1 of 36 county ZIPs), across 31.98 square miles (323/sq mi). For a full breakdown of Grafton County's crime categories and year-over-year trend, see the Grafton County crime page linked below.

ZIP 03766 has no FBI-native crime rate (postal codes are not police jurisdictions). Figures above use the Grafton County proxy where reported; see methodology for the ZCTA plurality map. Methodology.

ZIP 03766 Census context

These are ZIP/ZCTA demographic estimates, separate from the county-level FBI proxy above. They describe the local settlement, not a crime rate.

Median household income
$95,938
Median age
39.4 years
Owner-occupied homes
57%
Occupied homes
4,286
Median home value
$311,000
Bachelor's degree or higher
53.6%
Poverty rate
7.5%
Unemployment rate
0.4%

ZIP 03766's median home value of $311,000 sits higher than 48% of the 226 NH ZIPs with a reported value, roughly mid-range for the state.

Source: U.S. Census Bureau, ACS 2022 5-year ZCTA estimates (income, age, housing tenure, home value, education, and unemployment).

ZIP 03766 settlement vs Grafton County

ZIP 03766 itself is about 323 people per Census sq mi across 32 sq mi (10,334 residents), a postal settlement fact independent of the county UCR proxy.

ZIP 03766 accounts for roughly 11.3% of the county reporting population (10,334 of 91,118).

Settlement lines use Census ZCTA figures only; incomplete county agency coverage blocks any UCR mix or rate desk for this ZIP.

Nationwide peers for ZIP 03766

Similar Census population (~10,334)

County detail: Grafton County · State atlas: New Hampshire

Sources: U.S. Census Bureau (ZIP population, land area, 2020 ZCTA-to-county relationship file, ACS 5-year estimates) and FBI Uniform Crime Reporting (UCR) Program, Crime in the United States (CIUS) Table 10 (county-level crime, attributed via ZIP-to-county crosswalk).

Verify with Census.gov Geography and FBI.gov UCR.

Read our methodology , how this data is sourced, computed, and verified.

Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. This page combines Census ZIP-level figures with a ZIP-to-county crosswalk to attribute FBI UCR crime data honestly, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.