Comparison to Surrounding Areas
The median household income ($56,731) for 03603 is less than the median household income for 05156 ($66,679), 03743 ($59,625), 03773 ($81,232), 05101 ($70,299), 03601 ($81,250), 03602 ($70,455), 03608 ($88,224), 03609 ($72,391), Sullivan County ($80,858), Langdon town ($97,917), and Unity town ($87,500). But it's more than Charlestown town ($47,338).
| 03603 | $56,731 |
| Charlestown town | $47,338 |
| Langdon town | $97,917 |
| Unity town | $87,500 |
| Sullivan County | $80,858 |
Get Median Household Income for all Zip Codes in New Hampshire.
The average household income ($85,020) for 03603 is less than the average household income for 03602 ($119,345), 03608 ($119,528), 03609 ($86,342), 03773 ($100,377), Sullivan County ($105,975), Langdon town ($198,805), and Unity town ($99,666). But it's more than 03601 ($71,402), 03743 ($82,149), 05101 ($82,172), 05156 ($79,772), and Charlestown town ($82,039).
| 03603 | $85,020 |
| Charlestown town | $82,039 |
| Langdon town | $198,805 |
| Unity town | $99,666 |
| Sullivan County | $105,975 |
Get Average Household Income for all Zip Codes in New Hampshire.
The per-capita income for 03603 is $32,361. The per capita income ($32,361) for 03603 is less than the per capita income for 05156 ($33,923), 03743 ($35,774), 03773 ($44,819), 05101 ($37,985), 03602 ($52,282), 03608 ($49,327), 03609 ($40,086), Sullivan County ($44,514), Langdon town ($75,435), and Unity town ($40,006). But it's more than 03601 ($21,180) and Charlestown town ($30,589).
| 03603 | $32,361 |
| Charlestown town | $30,589 |
| Langdon town | $75,435 |
| Unity town | $40,006 |
| Sullivan County | $44,514 |
Get Per-Capita Income for all Zip Codes in New Hampshire.
8.6% of households make over $200,000 a year. The percent high income households (8.6%) for 03603 is less than the percent high income households for 03608 (17.4%), 03773 (10.1%), Sullivan County (10.0%), Langdon town (17.3%), and Unity town (10.5%). But it's more than 03609 (4.7%), 03601 (0.0%), 03602 (8.4%), 05156 (6.2%), 03743 (4.7%), 05101 (5.0%), and Charlestown town (7.9%).
| 03603 | 8.6% |
| Charlestown town | 7.9% |
| Langdon town | 17.3% |
| Unity town | 10.5% |
| Sullivan County | 10.0% |
Get High Income Households for all Zip Codes in New Hampshire.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 03603 | $-1 | $82,955 | $65,313 | $41,328 |
| Charlestown town | $-1 | $69,158 | $63,571 | $39,028 |
| Langdon town | $-1 | $200,833 | $122,778 | $56,094 |
| Unity town | $-1 | $99,318 | $115,583 | $57,500 |
| Sullivan County | $64,167 | $97,072 | $96,326 | $53,184 |
Get Median Household Income by Age of Householder for all Zip Codes in New Hampshire.
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Starting at $65.
All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 03603 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 03603 | +/-$13,494 | +/-$12,746 | +/-$4,933 | +/-3.4% | +/-$-1 | +/-$35,241 | +/-$19,379 | +/-$14,652 |
| Charlestown town | +/-$23,278 | +/-$14,094 | +/-$5,159 | +/-3.4% | +/-$-1 | +/-$32,238 | +/-$15,262 | +/-$14,734 |
| Langdon town | +/-$30,724 | +/-$111,577 | +/-$37,808 | +/-9.6% | +/-$-1 | +/-$125,560 | +/-$28,278 | +/-$17,000 |
| Unity town | +/-$15,624 | +/-$16,046 | +/-$5,518 | +/-6.6% | +/-$-1 | +/-$10,548 | +/-$21,789 | +/-$7,371 |
| Sullivan County | +/-$3,824 | +/-$7,849 | +/-$3,173 | +/-1.9% | +/-$45,117 | +/-$10,127 | +/-$8,086 | +/-$7,071 |