| Zip Code: | 03809
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| State: | New Hampshire
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| Population: | 3550
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| Housing Units: | 2187
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| Land Area: | 47.5 square miles 122.9 square kilometers |
| Water Area: | .5 square miles 1.3 square kilometers |
| City Name: | Alton
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| Post Office Name: | Alton
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| County: | Belknap
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| Area Code: | 603
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| Timezone: | EST
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| Latitude: | +43.462586
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| Longitude: | -071.222455
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| State Zip Codes: | New Hampshire Zip Codes
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| State Geography: | New Hampshire Geography
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