The Town of Alton is working with Whitney Consulting Group, an assessment and revaluation company, to perform a revaluation of Alton pursuant to RSA 75a-8. A revaluation is performed to bring assessments in line with current (April 1, 2026) market values. For more information on the revaluation process and what you can expect please read here:

Revaluation FAQ

For a list of individual assessments please use the list that corresponds to the address, the owner’s name or the map and lot number:

Sorted by Address

Sorted by Owner

Sorted by Map & Lot

Values are also posted on the:

AVITAR Assessing Kiosk

To see the Town GIS Maps please click here:

GIS Maps

Weather Info

Local Time

1:27 pm

Today
October 21, 2026

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Thursday
October 22, 2026

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Friday
October 23, 2026

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Saturday
October 24, 2026

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Events Calendar

October 2026

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Upcoming Events

Weight Training
1:30 pm - 2:30 pm at Gilman Library
Parks and Recreation Commission Meeting
6:00 pm - 8:00 pm
Budget Committee Meeting
6:00 pm at Alton Town Hall
Dungeons and Dragons
6:00 pm - 8:00 pm at Alton Bay Community Center

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Locations

Alton Bay Bandstand
Alton Bay Community Center
Alton Central School
Alton Town Hall
Gilman Library
Pearson Road Community Center
Prospect Mountain High School

About Alton

Nestled at the southern tip of Lake Winnipesaukee, Alton, New Hampshire, offers the perfect blend of small-town charm and natural beauty. Known for its welcoming community, scenic waterfront, and year-round outdoor activities, Alton is a destination for both visitors and residents who enjoy boating, hiking, and a relaxed pace of life. With a rich history and a strong sense of local pride, Alton embodies the spirit of New England in every season.

Upcoming Events

Weight Training
1:30 pm - 2:30 pm at Gilman Library
Parks and Recreation Commission Meeting
6:00 pm - 8:00 pm
Budget Committee Meeting
6:00 pm at Alton Town Hall
Dungeons and Dragons
6:00 pm - 8:00 pm at Alton Bay Community Center

More Events

Important Forms

Marriage Information Brochure
October 19, 2026
1 attachment
Marriage Intention Worksheet – 09/2026
October 19, 2026
1 attachment
2026 Special Election Minutes
August 19, 2026
1 attachment
CCR 2026
June 22, 2026
1 attachment

Quick Contact

1 Monument Square, Alton, NH 03809

Phone: (603) 875-2161
Fax: (603) 651-0732
Email: webmaster@alton.nh.gov

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December 2026

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October 21, 2026

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October 22, 2026

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October 24, 2026

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