Zip Code 03054
Merrimack, New Hampshire — Hillsborough County
📍 ZIP code 03054 is in Merrimack, Hillsborough County, New Hampshire.
ZIP code 03054 is located in Merrimack, Hillsborough County, New Hampshire. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 27,604. The area code for ZIP code 03054 is 603.
Quick Answer
Zip code 03054 is in Merrimack, New Hampshire (Hillsborough County). It has a population of 27,604, median household income of $128,897, and median home value of $406,200.
Population
27,604
Income
$128,897
Home Value
$406,200
Climate
84°F / 14°F
About Zip Code 03054
Zip code 03054 is located in Merrimack, New Hampshire, within Hillsborough County. Home to approximately 27,604 residents, this area sits at an elevation of 219 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 603.
The median household income is $128,897 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $406,200, and the cost of living index is 145 (45% above the national average of 100).
Summers average a high of 84°F while winters drop to 14°F. The area receives about 48 in of rain and 53 in of snow annually. The zip code covers 32.6 square miles of land area and 0.9 square miles of water.
Key Statistics
27,604
$128,897
$406,200
Eastern (EST/EDT)
603
219 ft
32.6 sq mi
41.5
10,581
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Compare With Nearby Zip Codes
| Metric | 03054 | 03052 | 03031 | 03063 | 03064 | 03110 |
|---|---|---|---|---|---|---|
| City | Merrimack, NH | Hudson, NH | Amherst, NH | Nashua, NH | Nashua, NH | Bedford, NH |
| Population | 27,604 | 8,495 | 11,873 | 15,630 | 14,565 | 23,580 |
| Median Income | $128,897 | $155,881 | $155,125 | $106,924 | $91,528 | $160,253 |
| Home Value | $406,200 | $443,600 | $491,400 | $371,700 | $382,000 | $582,000 |
| Cost of Living | 145 | 160 | 184 | 127 | 120 | 197 |
| Median Age | 41.5 | 43 | 45.9 | 38.7 | 43.8 | 44.4 |
Cost of Living
100 = National Average. Merrimack's cost of living is 45% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.2x
Demographics
Zip code 03054 has a population of 27,604 people with a median age of 41.5. There are 10,581 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Merrimack (03054) population trend from 2010 to 2024
↑ 1.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
14°F
48 in
53 in
Merrimack experiences warm summers with average highs around 84°F. Winters are cold with lows averaging 14°F. With 53 in of annual snowfall, residents should be prepared for significant winter weather.
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Housing & Economy
Median Home Value
$406,200
Median Household Income
$128,897
With 10,581 housing units across 32.6 square miles, 03054 has a housing density of 325 units per square mile. The home price-to-income ratio is 3.2x.
Location & Geography
Latitude
42.8520°
Longitude
-71.5199°
Land Area
32.6 sq mi
Water Area
0.9 sq mi
Nearby Zip Codes
Zip codes closest to 03054 (Merrimack, NH) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 03054's $128,897. A way to compare Merrimack to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 03054 (Merrimack, NH). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Merrimack, New Hampshire?
Merrimack, New Hampshire uses zip code 03054.
What county is zip code 03054 in?
Zip code 03054 is located in Hillsborough County, New Hampshire.
What is the population of zip code 03054?
The population of zip code 03054 is 27,604 with a median age of 41.5.
Is 03054 in Merrimack, New Hampshire?
Yes, zip code 03054 is in Merrimack, Hillsborough County, New Hampshire. The area code is 603.
Frequently Asked Questions
What city is zip code 03054 in?
Zip code 03054 is in Merrimack, New Hampshire. It is part of Hillsborough County and uses the Eastern (EST/EDT) timezone.
What is zip code 03054?
Zip code 03054 is a U.S. postal code in Merrimack, New Hampshire (Hillsborough County). It has a population of 27,604 and covers 32.6 square miles.
What is the population of zip code 03054?
The population of zip code 03054 (Merrimack, NH) is 27,604 with a median age of 41.5. There are approximately 10,581 housing units in this area.
What is the median income in zip code 03054?
The median household income in zip code 03054 (Merrimack, NH) is $128,897 per year. The cost of living index is 145 (100 = national average).
What is the average home price in zip code 03054?
The median home value in zip code 03054 (Merrimack, NH) is $406,200. The cost of living index is 145 compared to the national average of 100.
What county is zip code 03054 in?
Zip code 03054 is located in Hillsborough County, New Hampshire. The primary city is Merrimack.
What is the area code for zip code 03054?
Zip code 03054 in Merrimack, NH uses area code 603. It is located in the Eastern (EST/EDT) timezone.
Is zip code 03054 a good place to live?
Zip code 03054 (Merrimack, NH) has a cost of living index of 145 (100 = national average), a median household income of $128,897, and median home values of $406,200. The median age is 41.5. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 03054?
The cost of living index for zip code 03054 (Merrimack, NH) is 145, where 100 represents the national average. This area is above the national average. Median home value: $406,200.
What schools serve zip code 03054?
Zip code 03054 in Merrimack, New Hampshire is served by the local school district of Hillsborough County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.