Illinois · NCUA branch file, Q2 2026
Credit unions in Alton, IL
5 credit unions have 5 offices in Alton, Illinois, according to the branch information they filed with NCUA for the quarter ended June 30, 2026. 1st Midamerica Credit Union has the most here (1); the largest by assets is 1st Midamerica Credit Union at $1.01 billion.
| Credit union | Offices here | Assets | Net worth ratio | New auto rate | Based in |
|---|---|---|---|---|---|
| 1st Midamerica Credit Union | 1 | $1.0B | 13.33% | 4.99% | Bethalto, IL |
| Revity Credit Union | 1 | $527M | 10.40% | 4.49% | Granite City, IL |
| Altonized Community Federal Credit Union | 1 | $53.1M | 8.74% | 4.99% | Alton, IL |
| State Employees Community Credit Union | 1 | $6.7M | 20.02% | 13.22% | Alton, IL |
| Alton Municipal Employees Federal Credit Union | 1 | $436K | 38.44% | 4.30% | Alton, IL |
Rates are what each credit union reported to NCUA for new auto loans, not offers. All Illinois credit union loan rates.
Addresses, phone numbers and hours
1st Midamerica Credit Union
- College Office 3553 College Ave, Alton, IL 62002 Drive-through · ATM
Revity Credit Union
- Alton Branch 4105 Humbert Rd, Alton, IL 62002 Drive-through · ATM
Altonized Community Federal Credit Union
- ALTONIZED COMMUNITY FEDERAL CREDIT UNION 4435 Alby St, Alton, IL 62002 Main office · Drive-through · ATM
State Employees Community Credit Union
- 4500 College Avenue 4500 College Ave Ste 200, Alton, IL 62002 Main office
Alton Municipal Employees Federal Credit Union
- Alton municipal employees fcu 3212 College Ave, Alton, IL 62002 Main office
Addresses, phones and hours are as each credit union filed them with NCUA; confirm before you visit. Not affiliated with NCUA or any credit union.
Other cities in Illinois
- Chicago 49
- Peoria 9
- Springfield 12
- Moline 10
- Decatur 9
- Rockford 8
- Bloomington 8
- Gurnee 7
- Danville 5
- Naperville 5
- Aurora 7
- Normal 5
- Loves Park 6
- Waukegan 3
- North Chicago 3
- Edwardsville 5
Every Illinois city · All Illinois credit unions
Questions people ask
How many credit unions are in Alton, IL?
NCUA's branch file for Q2 2026 lists 5 credit union offices in Alton, run by 5 credit unions, 3 of them headquartered in the city.
Which credit union has the most branches in Alton?
1st Midamerica Credit Union, with 1 office in Alton. The largest credit union with an office here is 1st Midamerica Credit Union, with $1.01 billion in assets.
Can I join a credit union in Alton?
Each credit union serves a defined field of membership, often people who live or work in an area, employees of certain companies, or members of an association. Check the credit union's own eligibility rules. Some credit unions are open to anyone in the US through an association or a small donation.