The local post office was deemed uninhabitable due to damage from the floods and shut down despite repairs to the building.

Mail and parcels bound for Hamilton are instead forwarded to the Concrete post office, located 13 miles (21 km) away, despite protests from residents.

[7] According to the United States Census Bureau, the town has a total area of 1.13 square miles (2.93 km2), all of it land.

[8] As part of the Skagit River floodway, the town of Hamilton faces significant flooding every few years, most notably in 2003, 2006, 2017, and 2021.

[9] The frequent flooding has forced residents to adopt a routine of moving their furniture from the ground floor and evacuating to a local church until the waters recede.

The Federal Emergency Management Agency (FEMA) estimates it has spent $4.6 million in the town over the last several years.

The Hamilton Public Development Authority was established in 2004 to purchase the land necessary for moving the town, which was achieved with assistance from conservation group Forterra in 2018.

Forterra purchased a 45-acre (18 ha) farm north of State Route 20, which it aims to develop into a green city with housing for the relocated townspeople.