Explore Ayer, Massachusetts, with this interactive street and satellite map. You can “grab” the Ayer, MA street map and move it around to re-centre it. You can change between standard map view and satellite map view by clicking the small square in the bottom left-hand corner of the map. You can use the zoom buttons on the lower right side of the map to zoom in or out to street-level detail. You will find live weather, local and world news below.
| City | Ayer |
| State | Massachusetts (MA) |
| County | Middlesex |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 42.561202 |
| Longitude | -71.58979 |
| Population | 8,000 |
| Density | 680.0 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 01432 |
| Area Code | 339, 351, 413, 508, 617, 774, 781, 857, 978 |
| County Seat | Cambridge |
| School District | Ayer-Shirley School District |
Ayer is a locality in Middlesex County, Massachusetts, United States. It has a population of approximately 8,000. The population density is 680.0 people per km². Ayer is located at 42.5612°N, 71.5898°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 1432.
Ayer sits at a confluence, a place where the Nashua River, a patient ribbon of ochre and green, curves and whispers secrets to the surrounding land. It lies 9.0 miles east-north-east of Leominster, MA (from Leominster, MA: bearing 74°T), and is situated 9.6 miles west-north-west of Acton. Rolling hills, softened by the passage of seasons, rise and fall in gentle swells, their slopes often cloaked in the dense green of pine and the dappled shade of deciduous trees. The air here, especially as dusk begins to settle, carries a cool, earthy scent, a blend of damp soil and pine needles, a quiet exhalation from the earth itself. Roads, like arteries, weave through this terrain, connecting clusters of houses and businesses, their surfaces worn smooth by the steady procession of days and the occasional bright flash of a cardinal against the muted backdrop of foliage. The history of Ayer is deeply entwined with the railroads that once thundered through its heart, a legacy still evident in the skeletal remains of old tracks and the echoes of a bustling past. This was a vital junction, a hub for commerce and travel, and while the trains may no longer dominate the soundscape, their influence lingers, shaping the very layout of the streets and the character of the place. Today, the local economy finds its footing in a diverse array of small businesses, from independent shops lining Main Street to light industrial ventures on the outskirts, all contributing to the steady hum of daily life. The town embraces its past with a quiet pride, a palpable sense of continuity that allows its present to unfold with a deliberate, unhurried grace.
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This page provides an embedded street and satellite map of Ayer, Massachusetts — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 42.561202, -71.58979. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Ayer and Middlesex County.
Detailed location data for Ayer includes the ZIP code (01432), telephone area code (339, 351, 413, 508, 617, 774, 781, 857, 978), county seat of Middlesex County (Cambridge), and school district assignment (Ayer-Shirley School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Ayer is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |