Banks in Somonauk, IL

Bank branch map: Somonauk

Banks sit at the coordinates in their FDIC record; credit union offices at their NCUA address, located with the U.S. Census Bureau Geocoder. Point at a marker for today's hours, tap it for the address, directions and the bank's site.

Short answer: 2 banks and credit unions operate 2 locations in Somonauk, according to the FDIC. 2 of them have coordinates on record and are on the map. ATMs and opening hours are not in the sources this page uses yet; each marker links to directions.

Positions are the regulators' own coordinates, or the Census Geocoder's point for the address, and can sit a few hundred feet from the door. Streets, buildings and parks come from OpenStreetMap through OpenFreeMap, with every street named as you zoom in; if that map cannot load, a simpler map drawn from the Census Bureau's TIGER/Line files takes its place. ATMs will follow with the Overture Maps import.

All banks in Somonauk

Sorted by number of local branches. Each branch shows where its hours and phone number come from.

Short answer: Heartland Bank and Resource Bank have the most locations in Somonauk, with 1 each. 2 banks have a single office in the city. Open any bank to see each address, today's hours where the bank publishes them and the phone number.

Heartland Bank 1 branch · main office Bloomington, IL Bank · 1

Heartland Bank has 1 branch in Somonauk, 82 across Illinois and 87 nationwide. FDIC records list its main office in Bloomington, IL and show it operating since 1971. With $6.72 billion in total assets on June 30, 2026, it ranks No. 231 of 4,232 U.S. banks by total assets. The Somonauk Branch at 128 S Depot St dates to 1900 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

• Somonauk Branch

  128 S Depot St, 60552

  Hours: see the bank's site
  DirectionsWebsite

Heartland Bank: profile, branches and contacts

Resource Bank 1 branch · main office Dekalb, IL Bank · 1

Resource Bank has 1 branch in Somonauk, 15 across Illinois and 15 nationwide. FDIC records list its main office in Dekalb, IL and show it operating since 1901. With $868.6 million in total assets on June 30, 2026, it ranks No. 1,180 of 4,232 U.S. banks by total assets. The Resource Bank, National Assoication Branch at 605 E Market St dates to 2012 in FDIC branch records. It does not publish hours in the sources this page uses; check its site before you go.

• Resource Bank, National Assoication Branch

  605 E Market St, 60552

  Hours: see the bank's site
  DirectionsWebsite

Resource Bank: profile, branches and contacts

Banking in Somonauk: the local picture

Short answer: 2 banks run 2 branches in Somonauk according to the FDIC. A population estimate for this place is not available from the Census Bureau, so branches per resident are not shown.

Of the 2 banks, 0 have their main office in Somonauk, 2 elsewhere in Illinois, according to the FDIC.

The bank with the longest record here is Resource Bank, operating since 1901 according to the FDIC. In FDIC branch records, the longest-running branch is Heartland Bank's office at 128 S Depot St, dating to 1900; the newest is Resource Bank's at 605 E Market St, from 2012.

None of the 2 locations here publishes hours in the sources this page uses. Each branch links to the bank's own site.

Chase, Bank of America and other national banks

Which big national banks have branches in Somonauk, and where the nearest one is if they do not.

Short answer: No branches in Somonauk: Chase (nearest in Yorkville, 12 mi), Wells Fargo (nearest in Naperville, 29 mi), Bank of America (nearest in Aurora, 19 mi), PNC Bank (nearest in Aurora, 19 mi), U.S. Bank (nearest in Oswego, 20 mi), Truist, Fifth Third Bank (nearest in Aurora, 19 mi), Huntington (nearest in Aurora, 18 mi), Regions Bank (nearest in Peoria, 79 mi), TD Bank, BMO (nearest in Plano, 7 mi).

Branch counts from FDIC BankFind as of September 5, 2026. Distances are straight-line miles from the center of Somonauk to the nearest branch in Illinois.

What your savings could earn

National benchmarks and the best published offers, from the Banrox Bank Rates tracker. Enter your own balance and rate to compare.

Short answer: At the national average savings rate of 0.38%, $10,000 kept in savings for a year earns about $38. The best published savings rate in the tracker, 3.75% at CIT Bank, earns about $375. The national average 12-month CD pays 1.71%.

Rates are the banks' published APYs as tracked on the Banrox Bank Rates page, with the date next to each benchmark; they are not offers from Banrox and can change daily. Interest is before tax. The best offers are mostly online banks and are open to Somonauk residents like anyone else.

Banks near Somonauk

Nearby cities with at least two banks, by straight-line distance. Counts from FDIC BankFind.

Short answer: The closest towns with more choice are Sandwich (3 miles) and Plano (7 miles). Oswego, 18 miles away, has the most banks nearby: 10.

Bank branch openings and closings in Somonauk

FDIC branch records, between September 5, 2025 and September 5, 2026.

Short answer: FDIC branch records show no bank branch openings in Somonauk between September 5, 2025 and September 5, 2026. Closings and relocations are not tracked by the sources this page uses yet.

Largest banks in Somonauk by total assets

Ranked by each bank's total assets on its FDIC balance sheet, which covers the whole bank, not only its Somonauk offices.

Short answer: Heartland Bank is the largest bank with offices in Somonauk, with $6.72 billion in total assets on June 30, 2026, No. 231 among U.S. banks by total assets. Resource Bank is second with $868.6 million. Local deposit shares will follow once the FDIC Summary of Deposits is imported.

Total assets and ranks from FDIC BankFind as of June 30, 2026. Rank is among active banks that report total assets to the FDIC.

Banks in Somonauk: FAQ

How we build this page

Every figure above comes from one of these sources. Nothing is typed by hand, nothing is estimated.