The ZIP Code maps and database are updated 4 times per year. Database updated: March 1, 2026, Maps updated: May 1, 2024.
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Harwich, MA 02645 Data & Demographics
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION
Total Population
11,288 (100%)
Population Density
667 per sq mi
Diversity Index1
13
INCOME
Median Household Income
$104,401
Per Capita Income
$61,533
Median Home Value
$648,200
HOUSING
Total HU (Housing Units)
6,578 (100%)
Owner Occupied HU
4,361 (66.3%)
Renter Occupied HU
808 (12.3%)
Vacant Housing Units
1,409 (21.4%)
HOUSEHOLDS
Total Households
5,169
Average Household Size
2.14
Family Households
3,077 (59.5%)
NOTES
The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).
Harwich, MA 02645 - Peer Comparisons by Rank and Percentile
The table below compares 02645 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
