ZIP Code 03603 — Charlestown CDP, NH Demographics & Data

ZIP code 03603 covers Charlestown, NH in Sullivan County with a population of about 5,272.

At a glance, the area shows median age of 48.2 versus a U.S. median of about 38.9.

It sits in telephone area code 603; U.S. House district NH-2; the BURLINGTON - PLATTSBURGH media market.

Median household income in ZIP 03603 is about $55,266 — about 26% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 13.7%; unemployment rate near 2.1%; 18.6% of adults with a bachelor’s degree or higher (about 15.1 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Healthcare, and Retail trade; about 8.6% of workers reporting work-from-home (about 6.6 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $181,500 — about 48% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,050 (about 10% below the U.S. median rent ($1,163)), and owner-occupancy near 75.6% (about 10.2 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 03603 in Charlestown, NH, a household would need roughly $50,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,166. That is roughly in line with the local median household income ($55,266). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Charlestown CDP, NH as Very Low (composite score 37.6), which is relatively lower than many U.S. communities. The strongest component scores on US5 are hurricane (67.0) and flood (60.6). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Charlestown CDP, NH show little to no average snow and around 43.9 inches of annual precipitation.

IRS migration statistics show a net inflow of about 247 for ZIP 03603 (Charlestown CDP, NH) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.