New Hampshire County Map
All 10 counties with county seats and major cities
New Hampshire has ten counties, and half of them go back to a colonial law of 1769. This map shows all 10 counties and their county seats. Tap a county for details, or download the free printable map below.
Updated October 4, 2026 · Boundaries: U.S. Census Bureau 2025 · Population: Census estimates for July 1, 2025
New Hampshire county facts
- Number of counties
- 10
- Largest by land area
- Coos County 1,795 sq mi
- Smallest by land area
- Strafford County 367.5 sq mi
- Most people
- Hillsborough County 433,415
- Fewest people
- Coos County 31,343
- Fastest growing since 2020
- Carroll County +5.3%
- Highest median household income
- Rockingham County $118,331
- Oldest county
- Cheshire County est. 1769
- Newest county
- Belknap County est. 1840
- State capital
- Concord Merrimack County
Counties are responsible for repairing roads, bridges and highways in unincorporated areas, and they may set up planning boards to zone unincorporated towns and unorganized places.
List of 10 New Hampshire counties
Sorted A–Z. Click a column to sort, or a name to show it on the map. Download as CSV
| County | County seat | Population 2025 | Change since 2020 | Land area (sq mi) | Median income | Established | FIPS |
|---|---|---|---|---|---|---|---|
| Belknap County | Laconia | 65,147 | +2.3% | 402 | $92,783 | 1840 | 33001 |
| Carroll County | Ossipee | 52,784 | +5.3% | 932 | $86,463 | 1840 | 33003 |
| Cheshire County | Keene | 78,269 | +2.4% | 707 | $83,329 | 1769 | 33005 |
| Coos County | Lancaster | 31,343 | +0.2% | 1,795 | $57,677 | 1803 | 33007 |
| Grafton County | Haverhill | 93,225 | +2.3% | 1,709 | $88,261 | 1769 | 33009 |
| Hillsborough County | Manchester, Nashua | 433,415 | +2.5% | 877 | $103,545 | 1769 | 33011 |
| Merrimack County | Concord | 158,078 | +2.8% | 933 | $97,004 | 1823 | 33013 |
| Rockingham County | Brentwood | 324,077 | +3.2% | 696 | $118,331 | 1769 | 33015 |
| Strafford County | Dover | 135,043 | +3.2% | 368 | $88,570 | 1769 | 33017 |
| Sullivan County | Newport | 43,961 | +2.1% | 538 | $80,858 | 1827 | 33019 |
New Hampshire county map with cities
The largest cities in New Hampshire and the counties they are in. Cities that cross a county line list every county, the main one first. To find any smaller town, use the search box above.
| City | County | Population 2025 |
|---|---|---|
| Manchester | Hillsborough County | 116,818 |
| Nashua | Hillsborough County | 92,435 |
| Concord | Merrimack County | 44,597 |
| Dover | Strafford County | 34,623 |
| Derry | Rockingham County | 33,990 |
| Rochester | Strafford County | 33,716 |
| Salem | Rockingham County | 31,868 |
| Merrimack | Hillsborough County | 29,699 |
| Londonderry | Rockingham County | 27,844 |
| Hudson | Hillsborough County | 26,001 |
| Bedford | Hillsborough County | 23,973 |
| Keene | Cheshire County | 23,072 |
| Portsmouth | Rockingham County | 23,028 |
| Goffstown | Hillsborough County | 18,607 |
| Laconia | Belknap County | 17,246 |
| Milford | Hillsborough County | 16,686 |
| Hampton | Rockingham County | 16,381 |
| Windham | Rockingham County | 16,259 |
| Exeter | Rockingham County | 16,213 |
| Lebanon | Grafton County | 15,481 |
| Durham | Strafford County | 15,346 |
| Hooksett | Merrimack County | 15,346 |
| Pelham | Hillsborough County | 14,828 |
| Claremont | Sullivan County | 13,032 |
| Somersworth | Strafford County | 12,171 |
| Hanover | Grafton County | 12,054 |
| Amherst | Hillsborough County | 11,985 |
| Raymond | Rockingham County | 11,050 |
| Conway | Carroll County | 10,308 |
| Newmarket | Rockingham County | 9,647 |
Printable New Hampshire county maps (free PDF, PNG, SVG)
Every map is free to print and share. The PDFs are vector files with real text, so they stay sharp at any size and you can search them for a county name. Use 11×17 (tabloid) for the most readable labels.
Color map with names
All 10 counties labeled, county seats marked. Letter and 11×17 PDF, high-resolution PNG, editable SVG.
Map with cities
Counties with their county seat towns and major cities.
Blank outline map
County lines only, no names. For quizzes, coloring and your own notes.
Numbered map with key
A number in every county with an alphabetical key.
Black and white
Labeled map that prints well on any printer.
Population map
Counties shaded by population density (2025 estimates).
Data and GIS files
The county table as CSV, and the boundaries as GeoJSON and KML (Google Earth, Google My Maps).
How New Hampshire's ten counties were formed
An act of April 29, 1769, divided the whole colony of New Hampshire into five counties: Rockingham, Strafford, Hillsborough, Cheshire and Grafton. Strafford and Grafton were not fully organized at first and stayed attached to Rockingham until 1773. The New Hampshire Association of Counties dates the start of county government to 1771. Coos was split from Grafton under an 1803 act, Merrimack was formed in 1823 and Sullivan in 1827. An 1840 law took Belknap and Carroll out of Strafford, bringing the total to ten. Courts are now a state system, and towns and cities carry out most local government. The counties pay for two of the costliest public services in the state, long-term nursing care and jails. Each county's budget is approved by its delegation, the members of the state House elected from that county, while three commissioners run day-to-day operations.
County maps of neighboring states
Maine county map
Massachusetts county map
Vermont county map
New Hampshire counties: questions and answers
- How many counties are in New Hampshire?
- New Hampshire has 10 counties.
- What is the largest county in New Hampshire?
- By land area, Coos County is the largest (1,795 sq mi). By population, Hillsborough County is the largest, with 433,415 people (2025 estimate).
- What is the smallest county in New Hampshire?
- Strafford County is the smallest by land area (367.5 sq mi). Coos County has the fewest people: 31,343 (2025 estimate).
- What is the wealthiest county in New Hampshire?
- By median household income, Rockingham County ranks first with $118,331 (American Community Survey 2020–2024). The lowest is Coos County at $57,677.
- What county is Manchester in?
- Manchester is in Hillsborough County.
- What county is Nashua in?
- Nashua is in Hillsborough County.
- What county is Concord in?
- Concord is in Merrimack County.
- How can I see county lines on Google Maps?
- Google Maps does not draw county lines. Download the KML file from the printable maps section above and import it into Google My Maps (Create a new map › Import) or open it in Google Earth to see every New Hampshire county boundary on top of Google's map.
- Can I use this map for free?
- Yes. The maps and files on this page are free to print, share and use in your own work, including commercial projects, under the CC BY 4.0 licence. Please credit “WhichCounty (whichcounty.com)”.
Use this map on your site
You may copy, print and publish these maps, also commercially, as long as you credit WhichCounty with a link (licence details). Paste this code to embed the map:
Sources and methodology
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000), simplified for display. Projection: Lambert conformal conic fitted to New Hampshire.
- Population: Census Bureau county estimates, Vintage 2025 (July 1, 2025), compared with the April 1, 2020 estimates base.
- Land area: Census Bureau 2026 Gazetteer files. Median household income: American Community Survey 2020–2024 5-year estimates.
- County seats and founding years: Wikidata (CC0), checked against state lists by WhichCounty. Cities: Census Bureau city and town estimates, Vintage 2025.
- The History of NH County Government (New Hampshire Association of Counties)
- Atlas of Historical County Boundaries: New Hampshire (Newberry Library)
- County Government Overview: New Hampshire (National Association of Counties)
- 2022 Census of Governments: Individual State Descriptions (U.S. Census Bureau)
Found an error? Tell us. Last data update: October 4, 2026.