Bank · FDIC insured
Old Second National Bank
A $6.9B bank, the 220th largest of 4,207, headquartered in Aurora, IL, with 54 branches in Illinois. Best rates: CDs 3.75% APY.
Rates
No Carrot Score yet: it needs scores for at least two of CDs, savings, auto loans and credit cards. Savings: carrot has not captured enough rates to score this yet. Auto loans: only rates Carrot doesn’t compare are published (introductory, refinance or business rates, or none at all). Credit cards: no rates found on its website.
- CDs713.75%for 3–8 monthsCD rates →
Deposits are federally insured by the FDIC up to $250,000 per depositor.
About Old Second National Bank
Old Second National Bank opened in 1871 and serves individuals and businesses throughout Chicagoland and the surrounding communities.
The bank completed the integration of Evergreen Bank.
- Headquarters
- 37 S River St, Aurora, IL 60506
- FDIC certificate
- 3603 ↗
Branches
54 branches in Illinois
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Illinois
54 branches
Chicago area · 53
- Old Second National BankMain office37 S River St, Aurora, IL 60506Directions
- Eola Road Branch335 N Eola Rd, Aurora, IL 60504Directions
- Farnsworth Branch1350 N Farnsworth Ave, Aurora, IL 60505Directions
- Orchard Branch1230 N Orchard Rd, Aurora, IL 60506Directions
- West Galena Branch2000 W Galena Blvd, Aurora, IL 60506Directions
- Bartlett Branch1061 W Stearns Rd, Bartlett, IL 60103Directions
- Old Second Batavia Branch1991 W Wilson St, Batavia, IL 60510Directions
- Bensenville Branch2 S York Rd, Bensenville, IL 60106Directions
- Stratford Square Branch355 W Army Trail Rd, Bloomingdale, IL 60108Directions
- Bolingbrook East Branch672 E Boughton Rd, Bolingbrook, IL 60440Directions
- Bolingbrook West Branch1104 W Boughton Rd, Bolingbrook, IL 60440Directions
- Burlington Branch194 S Main St, Burlington, IL 60109Directions
- Fair Oaks Branch1380 W Army Trail Rd, Carol Stream, IL 60188Directions
- Gary Avenue Branch401 N Gary Ave, Carol Stream, IL 60188Directions
- 6400 West North Ave Br6400 W North Ave, Chicago, IL 60707Directions
- 9443 South Ashland Avenue Branch9443 S Ashland Ave, Chicago, IL 60620Directions
- Downtown Chicago Branch333 W Wacker Dr, Chicago, IL 60606Directions
- Hegewisch Branch13323 S Baltimore Ave, Chicago, IL 60633Directions
- Taylor Street Branch1301 W Taylor St, Chicago, IL 60607Directions
- Chicago Heights Branch195 W Joe Orr Rd, Chicago Heights, IL 60411Directions
- Cass Avenue Branch8001 Cass Ave, Darien, IL 60561Directions
- Finley Road Branch2800 Finley Rd, Downers Grove, IL 60515Directions
- Elburn Branch749 N Main St, Elburn, IL 60119Directions
- Elgin-Route 20 Branch3290 Us Highway 20 And Nesler Road, Elgin, IL 60123Directions
- Evergreen Park Branch3842 W 95th St, Evergreen Park, IL 60805Directions
- Flossmoor Branch3301 Vollmer Rd, Flossmoor, IL 60422Directions
- Frankfort Branch20201 S La Grange Rd, Frankfort, IL 60423Directions
- Glendale Heights Branch1657 Bloomingdale Rd, Glendale Heights, IL 60139Directions
- Joliet Branch850 Essington Rd, Joliet, IL 60435Directions
- Metra Main Wsb Xpress Branch100 S Main St, Lombard, IL 60148Directions
- North Main Branch707 N Main St, Lombard, IL 60148Directions
- South Main Branch1122 S Main St, Lombard, IL 60148Directions
- Westmore Branch711 S Meyers Rd, Lombard, IL 60148Directions
- Montgomery Branch1830 Douglas Rd, Montgaomery, IL 60538Directions
- Naperville Branch2020 Feldott Ln, Naperville, IL 60540Directions
- North Aurora Branch200 John St, North Aurora, IL 60542Directions
- Oak Brook Branch1515 W 22nd St Ste 100w, Oak Brook, IL 60523Directions
- Oak Brook Terrace Branch17w754 22nd St, Oakbrook Terrace, IL 60181Directions
- Oswego Branch1200 Douglas Rd, Oswego, IL 60543Directions
- Palos Heights Branch7101 W 127th St, Palos Heights, IL 60463Directions
- Plano West Branch7050 Burroughs Ave, Plano, IL 60545Directions
- Romeoville Branch505 N Weber Rd, Romeoville, IL 60446Directions
- South Elgin Branch1870 Stearns Rd, South Elgin, IL 60177Directions
- South Holland Branch601 E 162nd St, South Holland, IL 60473Directions
- Charlestowne Branch3000 E Main St, St. Charles, IL 60174Directions
- St. Charles Branch315 S Randall Rd, St. Charles, IL 60174Directions
- Sugar Grove Branch522 N Sugar Grove Pkwy, Sugar Grove, IL 60554Directions
- Sycamore Branch1810 Dekalb Ave, Sycamore, IL 60178Directions
- Villa Park Branch40 E Saint Charles Rd, Villa Park, IL 60181Directions
- Warrenville BranchIl-59, Warrenville, IL 60555Directions
- Wasco Branch40w 422 Il-64, Wasco, IL 60183Directions
- Danada Branch295 W Loop Rd, Wheaton, IL 60189Directions
- Countryside Branch26 W Countryside Pkwy, Yorkville, IL 60560Directions
Ottawa area · 1
- Ottawa Branch323 E Norris Dr, Ottawa, IL 61350Directions
Walk-in offices from the FDIC directory as of September 4, 2026. Directions open Google Maps. A nearby branch doesn’t mean you can join or open an account.
Financial details
| Measure | This bank | Peers’ middle | Strongest quarter |
|---|---|---|---|
| CapitalLeverage ratio | 12.05% | 10.49% | 11.89% or more |
| Troubled loansNoncurrent | 1.08% | 0.52% | 0.23% or less |
| ProfitabilityReturn on assets | 1.69% | 1.25% | 1.62% or more |
| LendingLoans per $100 deposited | $96 | $88 | — |
- CapitalLeverage ratio12.05%Peers’ middle 10.49% · Top 25% 11.89%+
- Troubled loansNoncurrent1.08%Peers’ middle 0.52% · Top 25% ≤0.23%
- ProfitabilityReturn on assets1.69%Peers’ middle 1.25% · Top 25% 1.62%+
- LendingLoans per $100 deposited$96Peers’ middle $88
Compared with the 897 banks with $1 billion to $10 billion in assets. The strongest quarter is what the best 25% of them reach: more capital and profit, fewer troubled loans. Lending has no better end.Troubled loans are noncurrent: 90 or more days late, or no longer earning interest.
Regulators’ own ratings of Old Second National Bank are confidential. These figures are what it reports to the FDIC each quarter, set beside its peers; they aren’t a rating.