Clermont[a] is a city in Fayette County, Iowa, United States.

[3] Clermont is home to Montauk, the mansion of former Iowa governor William Larrabee, along with much historic architecture.

According to the United States Census Bureau, the city has a total area of 1.23 square miles (3.19 km2), all land.

There were 291 housing units at an average density of 230.9 per square mile (89.2/km2).

There were 310 housing units at an average density of 252.0 per square mile (97.3/km2).

27.5% of all households were made up of individuals, and 12% had someone living alone who was 65 years of age or older.

28.7% of all households were made up of individuals, and 16.0% had someone living alone who was 65 years of age or older.

It is a part of the North Fayette Valley Community School District.

Now named the Larrabee Building, it houses administrative offices of the city government and a library.

Jason Clayworth and Charles Litchfield of the Des Moines Register described it as "richly decorated in marble".