[2] Androscoggin County comprises the Lewiston-Auburn, Maine metropolitan statistical area and is partially included in the Lewiston-Auburn, Maine, Metropolitan New England City and Town Area.

It was also an impractical circumstance as Lewiston's neighbor, Auburn, was part of Cumberland County.

Different plans were discussed, including Lewiston joining Cumberland County.

As more people then lived to the west of the Androscoggin River, Auburn won the vote.

The Adroscoggin Riverlands State Park lies along the river, north of Auburn.

The county is also the site of Poland Spring, the original source of the bottled water brand bearing its name.

The racial makeup of the county was 90.6% white, 5.4% black or African American, 1.1% Asian, and 2.0% from two or more races.

The largest ancestry groups were: 19.7% English, 18.6% French, 14.6% Irish, 5.7% German, 4.7% Italian, 3.7% Scottish, and 2.1% Subsaharan African.

[20] In presidential elections, Androscoggin County is considered a "swing area" by most political standards, with a fairly even split between Democratic and Republican voters.

It was the only county in Maine to be won by Democrats Franklin D. Roosevelt in 1932 and George McGovern in 1972.

However, the county swayed in favor of Republican Donald Trump for both the 2016 and 2020 elections;[21] even as the state as a whole was won by Democrats Hillary Clinton and Joe Biden, respectively.

[22] In 2012, the county voted 54% against Maine Question 1, 2012 – a measure to legalize same-sex marriage, but the referendum passed in the state with 53%.