Zip Code 03230 — Danbury, NH

ZIP Code 03230 is associated with Danbury, NH, in Merrimack County. The listed population estimate is 1,451; estimated density is 13.9 people per square mile. Among records with population estimates, it ranks #23 of 28 in Merrimack County and #172 of 245 in NH.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (43.526850, -71.862200)

Data MetricLocal Statistic
Postal / Zip Code03230
Primary CityDanbury
State / ProvinceNH
CountyMerrimack
Total Population1,451
Population Density13.9 people/sq mi
TimezoneAmerica/New_York

How 03230 Compares

MetricZIP 03230Merrimack County recordsNH records
Population estimate1,451160,041 (sum)1,394,951 (sum)
Population Density13.9 /sq mi----
County population rank#23 of 28----
State population rank#172 of 245----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in NH

ZIP CodeCityDistancePopulation estimate
ZIP 03243Hill4.9 mi952
ZIP 03287Wilmot5.9 mi1,487
ZIP 03240Grafton6.5 mi1,354
ZIP 03216Andover6.5 mi2,046
ZIP 03231East Andover7.3 mi89

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →