Although law on the frontier was competitive, Lincoln made many friends in Logan County at this time. In 1846, the people of Central Illinois elected him to serve a term in the U.S. House of Representatives, and in 1853, the people of central Logan County named their new county seat for him. The new town of Lincoln grew so fast that by the 1860s, it had swallowed up nearby Postville, which was annexed and ceased to exist as an autonomous municipality.