What a credit union is and how it differs from a bank
A credit union is a financial institution owned by its members rather than by shareholders. When you join a credit union, you become a partial owner. This structure means the credit union's profits go back to members through lower fees, better interest rates on savings, and lower rates on loans — not to distant investors.
The practical difference shows up in daily banking. Credit unions typically charge fewer fees than banks, offer higher rates on savings accounts, and approve loans based more on your history with the institution than on a credit score alone. The trade-off is that credit unions have fewer branches and ATMs than large national banks, though most credit unions now belong to shared branching networks that let you use other credit unions' locations.
Credit unions are regulated by federal or state authorities depending on their charter. Federal credit unions are insured by the National Credit Union Administration (NCUA), which protects your deposits up to $250,000 — the same as FDIC insurance at banks.
Key Takeaways
- Credit unions are member-owned cooperatives that return profits to members through lower fees and better rates, unlike banks owned by shareholders.
- You must meet specific membership requirements to join a credit union, which vary by institution — some are based on where you work, where you live, or groups you belong to.
- Finding the right credit union means checking membership rules, comparing rates and fees, and confirming they offer the services you actually use.
- Credit unions share ATM and branch networks, so limited physical locations matter less than they once did.
- Federal credit unions carry NCUA insurance protecting deposits up to $250,000, the same protection as bank deposits.
How membership requirements work
You cannot simply walk into a credit union and open an account the way you can at a bank. Credit unions have membership requirements based on what is called a "field of membership." This means you must fall into a specific category to join.
Common membership categories include: employees of a particular company or government agency; people who live or work in a specific geographic area; members of a particular profession, union, or religious organization; or family members of existing members. Some credit unions have broad fields of membership (for example, anyone who lives in a five-county region), while others are narrow (employees of a single hospital system).
To learn about you may have access to for a specific credit union, visit their website or call and ask directly. Many credit unions list their membership requirements on the homepage. If you do not meet the requirements for any credit union in your area, some credit unions allow you to join if you open a savings account with a small deposit and become a member of an affiliated organization — sometimes as simple as joining a credit union advocacy group.
Where to search for credit unions you can join
The easiest starting point is the CO-OP Network locator or the Allpoint ATM network, both of which let you search by location or membership type. The National Credit Union Administration (NCUA) also maintains a searchable database of all federally insured credit unions at their website.
If you work for a large employer, ask your HR department whether your company has a credit union. Many employers sponsor or partner with credit unions specifically for their staff. If you belong to a union, professional association, or religious organization, check whether they sponsor a credit union — these often have the lowest fees and best rates because they serve a tight-knit group.
Once you have a list of credit unions you might may have access to for, visit each one's website to confirm membership rules and compare what they offer. Look at savings account rates, checking account fees, loan rates, and whether they offer services you need — such as online banking, mobile apps, or business accounts.
Comparing rates and fees across credit unions
Credit unions generally charge lower fees than banks, but rates and fees still vary significantly from one credit union to another. Before joining, compare at least three of the following: monthly maintenance fees on checking accounts, overdraft fees, ATM fees outside their network, minimum balance requirements, and interest rates on savings accounts.
For loans, compare the annual percentage rate (APR) on auto loans, personal loans, and mortgages if you plan to borrow. Credit unions often offer better rates than banks, but the difference depends on your credit history and the specific credit union's lending practices. Some credit unions publish their rates online; others require you to call or visit in person.
Do not assume all credit unions are cheaper than all banks. A credit union with high fees and low savings rates may cost you more than a bank with competitive pricing. The advantage of credit unions is the potential for better terms, not a may provide.
Understanding shared branching and ATM networks
Most credit unions participate in shared branching networks, which means you can conduct many transactions at other credit unions' branches even if you are not a member there. The CO-OP Network and Allpoint are the two largest networks. If your credit union belongs to one of these, you can visit thousands of other locations to deposit checks, withdraw cash, or open new accounts.
ATM access works similarly. Credit unions in the same network share ATMs, so you can withdraw cash without paying a fee at any ATM in the network. This matters because credit unions typically have fewer ATMs than national banks. Before joining a credit union with limited branches, confirm they belong to a large shared network and that network has ATMs near your home and workplace.
Check the credit union's website for a branch and ATM locator, or search the CO-OP or Allpoint networks directly. If you travel frequently or live in a rural area, network access is especially important.
What to look for in online and mobile banking
Most credit unions now offer online banking and mobile apps, but the quality and features vary widely. Before joining, test their website or app if possible — some credit unions let you explore without logging in. Look for features you actually use: mobile check deposit, bill pay, account transfers, and the ability to set up alerts.
Smaller credit unions sometimes have less sophisticated technology than large banks. If you rely on advanced features like investment accounts, business banking, or international transfers, confirm the credit union offers them before you join. Some credit unions partner with third-party providers to offer services they do not build themselves.
Customer service matters too. Check whether the credit union offers phone support during hours you are awake, live chat, or email support. Read recent reviews on independent sites to see what members say about the app's reliability and customer service responsiveness.
Deciding between a federal and state-chartered credit union
Credit unions are chartered either by the federal government or by a state. Federal credit unions are regulated by the NCUA and insured by the NCUA insurance fund. State-chartered credit unions are regulated by their state and may be insured by the NCUA, by a state insurance fund, or by private insurance.
For most members, the difference is invisible. Both types are safe — NCUA insurance and most state insurance funds protect deposits up to $250,000. The main difference is in how they are regulated and which rules they follow. Federal credit unions sometimes have slightly different lending limits or membership rules than state credit unions.
When comparing credit unions, check whether they are federally or state-chartered and what insurance they carry. This information is usually on their website or available by calling. If a credit union is not insured by the NCUA or a recognized state fund, that is a red flag.
Frequently Asked Questions
Can I join multiple credit unions?
Yes. You can be a member of more than one credit union if you meet the membership requirements for each. Some people maintain accounts at multiple credit unions to take advantage of different rates or services. However, NCUA insurance covers up to $250,000 per credit union, so if you have more than that in deposits across all your accounts at one credit union, the excess is not insured.
What happens if a credit union fails?
If a federally insured credit union fails, the NCUA protects your deposits up to $250,000 per account category (checking, savings, retirement accounts are separate). You will be made whole, though it may take time. State-insured credit unions have similar protections through their state insurance fund. This is the same protection you have at banks.
Do I need good credit to join a credit union?
No. Credit unions do not run a credit check to join. Membership is based on whether you meet the field of membership requirements — your job, location, or group affiliation. However, if you want to borrow money from the credit union, they will review your credit history and may offer better rates than banks even if your credit is not perfect.
Can I switch from a bank to a credit union?
Yes. You can open a credit union account while keeping your bank account open, then gradually move your direct deposits, automatic payments, and transfers over. Many credit union websites have tools to help you switch, and staff can walk you through the process. You do not have to close your bank account immediately.
What if there are no credit unions I can join in my area?
Some online credit unions have broader membership rules and may accept you even if local credit unions do not. You can also look into whether you may have access to for membership through a family member, employer, or organization you belong to. If no credit union works for you, a community bank or online bank may offer rates and fees competitive with credit unions.