Coos County, New Hampshire Map
Explore Coos County, New Hampshire with this interactive street and satellite map. Browse all 7 cities and towns in Coos County below.
Interactive Map of Coos County, New Hampshire
| County | Coos |
| State | New Hampshire (NH) |
| County Seat | Lancaster |
| Country | United States of America |
| Latitude | 44.601007 |
| Longitude | -71.439407 |
| Cities & Towns | 7 |
| Area Codes | 603 |
About Coos County, New Hampshire
Coos County occupies the rugged, northernmost reaches of New Hampshire, where the sprawling granite shoulders of the White Mountains give way to the deep, coniferous silence of the Great North Woods. The terrain is defined by a verticality that resists easy passage, with the upper stretches of the Connecticut River tracing a cold, meandering boundary against the neighboring state to the west. To the east, the landscape leans toward the border of Maine, while the north pushes firmly against the Canadian frontier. Here, the air holds a persistent, thin crispness even in the height of summer, and the light at dusk has a tendency to turn the granite outcrops a bruised, metallic purple before the shadows swallow the valleys whole.
Coos County emerged as a distinct administrative entity in the early nineteenth century, fashioned from the northern extremities of older, larger jurisdictions to accommodate the sparse but growing population of pioneers and timber men. The county seat was established in a valley defined by its proximity to the river, chosen for its position as a functional center for the logging industry and the regional transit of goods. The history of these settlements is written in the stubborn persistence of stone walls that mark boundaries in the middle of dense, second-growth forests, where the labor of clearing the rocky soil remains visible a century later. It is a place where the social order was built on a foundation of Yankee independence, a quiet insistence on self-reliance that persists in the way people maintain their property against the relentless encroachment of frost and heavy snow.
Industry in these parts has shifted through the decades, moving from the rhythmic thrum of paper mills and the seasonal harvest of timber to a modern economy that relies on the land’s capacity for recreation and the quiet endurance of its residents. The character of the county is found in the slow, deliberate pace of a local hardware store on a Tuesday morning or the way the fog clings to the surface of the high lakes until well past noon. People here navigate the seasons with a practiced, internal clock, moving between the demands of wood heat in winter and the brief, brilliant intensity of the short growing season. It is a landscape that demands a certain level of stoicism, where the vast, unpopulated tracts of timberland offer a solitude that is both intimidating and grounding, reminding any traveler that the human footprint here is merely a suggestion against the sheer, enduring weight of the northern woods.
Cities and Towns in Coos County
About This Coos County Map Page
This page provides an interactive map of Coos County, New Hampshire alongside links to detailed street maps for 7 cities and towns. The county seat is Lancaster. Each city and town map page includes live weather, local news and precise GPS coordinates.
The Search Maps button below the county map opens USGS topographic maps and aerial imagery as base layers, with a labelled U.S. National Grid (USNG) overlay, a distance and bearing tool, and a single-fix GPS readout giving your USNG grid reference and latitude and longitude.
Location data is sourced from the USGS GNIS database and verified by coordinates, not name matching alone.
| Page generated | September 2026 |
| Location data | USGS GNIS database; coordinates matched to 2020 US Census records |
