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Credit Union Routing Number

Chicago Area Office Federal Credit Union Routing Number

The routing number for Chicago Area Office Federal Credit Union is 271077888. It is a credit union in Chicago, Illinois, NCUA charter 5045.

Primary ABA / RTN
271077888

Data as of · size and membership from the NCUA 5300 call report. How we update

About Chicago Area Office Federal Credit Union

Chicago Area Office Federal Credit Union is based in Chicago, Illinois, and has been chartered since 1943. It reported $9.4M in assets for Q2 2026, the 120th largest of 185 credit unions headquartered in Illinois and 3517th of 4,252 nationally. Assets were $9.3M a year earlier (Q2 2025), so the credit union is larger now. It counted 1,092 members on that report. The NCUA lists 1 branch location for the credit union.

Record

Routing number
271077888
NCUA charter number
5045
RSSD ID
164872
Headquarters
Chicago, Illinois 60661
Chartered
1943
NCUA insured since
January 4, 1971
Total assets (Q2 2026)
$9.4M
Members (Q2 2026)
1,092
Branch locations
1
Routing record refreshed
October 8, 2026
Check before you send money. Chicago Area Office Federal Credit Union's FFIEC record lists this one primary number and does not say whether it also serves wires. Confirm the wire number with the credit union. What a routing number is.

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