Bank routing number ยท Audubon, Iowa
Audubon State Bank Routing Number (ABA): 073904159
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The Audubon State Bank routing number is 073904159. It is the primary ABA routing transit number on the bank's FFIEC National Information Center record, refreshed here on October 27, 2026.
Audubon State Bank at a glance
Its CET1 capital ratio was 14.41% at Q2 2026, comfortably above the 7% level required once the capital conservation buffer is included.
- Total assets, Q2 2026
- $155.3M
- CET1 ratio, Q2 2026
- 14.41%
- Deposit insurance
- FDIC
- Regulator
- FDIC
- Domestic offices
- 1 FDIC institution directory, current count
- Latest call report
- Q2 2026, FFIEC 051
- Established
- 1876
Full financial profile · Is Audubon State Bank safe? · Audubon State Bank call report · Branch locations
Audubon State Bank routing numbers on file
| Routing number | Type | Status | Source |
|---|---|---|---|
| 073904159 | Primary ABA | Active | FFIEC NIC |
Record refreshed here on October 27, 2026. NIC holds one primary number per bank; Audubon State Bank publishes any other numbers it uses itself.
What the digits mean
The first two digits, 07, place this number in the Federal Reserve Bank of Chicago's district (District 7). Digits five through eight, 0415, identify the institution within that district. The last digit, 9, is a check digit, and the number passes the standard check: weight the nine digits 3, 7, 1, 3, 7, 1, 3, 7, 1 and the sum is a multiple of 10.
Before you send money to Audubon State Bank
A routing number tells the payment network which financial institution holds an account. You give it with an account number for ACH transfers through the automated clearing house, such as direct deposit, bill pay and transfers from a checking account, which usually settle in one to two business days. An international wire to a US account normally needs the bank's SWIFT code as well.
Match this number against the one on your Audubon State Bank checks or in its online banking. Ask the bank for wire instructions (www.audubonstatebank.com). Our record does not show whether this number receives wires. The Federal Reserve's E-Payments Routing Directory shows it: its Fedwire participant search lists the numbers that can receive Fedwire transfers, and its FedACH search lists those that receive ACH payments. How to confirm any routing number.
About Audubon State Bank
Audubon State Bank is headquartered in Audubon, Iowa and was established in 1876. It reported $155.3M in total assets and $131.0M in deposits for Q2 2026, the 162nd largest of the 225 banks headquartered in Iowa. See the largest banks in Iowa by total assets. It reports 1 domestic office. Its deposits have been FDIC insured since 1934. Its primary federal regulator is the FDIC.
What the digits in 073904159 mean
The first four digits, 0739, are the Federal Reserve routing symbol. The prefix 07 places the number in the 7th Federal Reserve District (Chicago). That is also the district where the bank is headquartered. Digits five through eight, 0415, identify the institution within its Federal Reserve district. The last digit, 9, is a check digit. Weighting the digits 3, 7 and 1 in turn gives 3 x 10 + 7 x 12 + 16 = 130, a multiple of 10, so 073904159 is a well-formed routing number. A mistyped digit almost always breaks that sum.
What is the Audubon State Bank routing number?
The Audubon State Bank routing number is 073904159. It is the primary ABA routing transit number registered to Audubon State Bank, headquartered in Audubon, IA. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 27, 2026.
What is the Audubon State Bank wire routing number?
This page lists the primary routing number registered to Audubon State Bank. The record does not say whether the bank uses the same number for wire transfers. Confirm the wire routing number with Audubon State Bank before sending a wire.
Is ABA number 073904159 the routing number for Audubon State Bank?
Yes. It is the primary routing number registered to Audubon State Bank.
Which bank uses routing number 073904159?
It belongs to Audubon State Bank, headquartered in Audubon, IA. It is the bank's primary ABA routing number (FDIC certificate 5814).
Routing numbers of similar-size institutions in Iowa
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Regulator records: FDIC BankFind (cert 5814) · FFIEC NIC profile (RSSD 760649)