ZIP Code 03220 has segments in 2 Counties (Belknap, Merrimack).
The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.
POPULATION | |
|---|---|
| Total Population | 8,003 (100%) |
| Population in Households | 8,000 (100.0%) |
| Population in Families | 6,539 (81.7%) |
| Population in Group Quarters1 | 3 ( 0.0%) |
| Population Density | 254 |
| Diversity Index2 | 19 |
INCOME | |
| Median Household Income | $87,886 |
| Average Household Income | $112,602 |
| % of Income for Mortgage4 | 24% |
| Per Capita Income | $46,235 |
| Wealth Index5 | 109 |
| Socioeconomic Status Index6 | Moderate (51.4) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 3,973 (100%) |
| Owner Occupied HU | 2,572 (64.7%) |
| Renter Occupied HU | 714 (18.0%) |
| Vacant Housing Units | 687 (17.3%) |
| Median Home Value | $330,418 |
| Average Home Value | $362,935 |
| Housing Affordability Index3 | 94 |
HOUSEHOLDS | |
| Total Households | 3,286 |
| Average Household Size | 2.43 |
| Family Households | 2,208 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | 1.14% | 0.44% |
| Households | 1.18% | 0.64% |
| Families | 0.65% | |
| Median Household Income | 3.12% | |
| Per Capita Income | 2.69% | |
| Owner Occupied HU | 0.90% |
The table below compares 03220 to the other 254 ZIP Codes in New Hampshire by rank and percentile using July 1, 2025 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.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 47 | 82nd |
| Population Density | # 67 | 74th |
| Median Household Income | # 159 | 38th |
| Housing Affordability Index | # 214 | 84th |
| Per Capita Income | # 168 | 34th |
| Diversity Index | # 112 | 57th |
Additional comparisons and rankings can be made with a VERY EASY TO USE New Hampshire Census Data Comparison Tool.