Back to San Antonio credit unions

Firstmark

P.O. Box 701650, San Antonio, TX 78270
NCUA Insured4.7 (376 reviews)2 charter

Verified Information

NCUA Insured

Member-Owned

2 charter

Established in 1932

Contact this credit union directly for detailed information about membership eligibility and current rates.

Location & Directions

Address

P.O. Box 701650

San Antonio, TX 78270

Service Area

This credit union is located in San Antonio and serves members in the TX area. Currently serving 89,054 members.

Membership Info:

Contact the credit union to confirm membership eligibility requirements for your area.

Note on Membership

Credit union membership is based on a common bond. Contact this credit union directly to confirm you qualify for membership.

Financial Health

Q4 2025 · NCUA

Key indicators from NCUA regulatory filings. Tap any metric to learn what it means.

Source: NCUA Federally Insured Credit Unions list, Q4 2025.

Loan Rates

Rates sourced from NCUA call report data (Q4 2025). Contact the credit union for current rates and terms.

New Auto Loan

7.37%

Used Auto Loan

7.19%

Personal Loan

12.34%

Credit Card APR

15.29%

Important: Rates are sourced from NCUA call report filings (Q4 2025) and reflect averages reported by the credit union — not guaranteed quotes. Contact the credit union directly for current rates and terms.

Your actual rate will vary based on your credit score, loan term, and financial profile. Personal loans and credit cards tend to see the most variation.

Best Rates in TX

Lowest rates currently reported by credit unions in TX (NCUA Q4 2025).

Rates from NCUA regulatory filings. Contact credit unions directly for current rates.

Branches & Locations(13 total)

Member Reviews

4.7

376 Google reviews

Reviews sourced from Google Maps. Ratings reflect member experiences at this credit union.

View on Google Maps
Argelia Weber

Argelia Weber

4 months ago

I contacted Firstmark for information and the 2 representatives who assisted me were very courteous, had great listening skills and knew their products well. It was a pleasure conducting business with these two individuals--one female and one male. Since covid, Customer Service has gone downhill all across retail, banking, insurance entities, doctor offices, even grocery stores! This experience was very encouraging and I look forward to doing business with them in the future! Give them a call-- they have good interest-bearing products!

Catherine Kline

Catherine Kline

3 months ago

They’re good at the basic stuff, but when it came to helping me in less basic circumstances like having to deposit paper checks from work and filing a dispute, all they wanted to do was use urgency scam tactics to make me pay them more money. Was with them for about 10 years, but speaking on the phone with Aaron who didn’t tell me there would be additional charges related to filing a second dispute, and Jami who was extremely unprofessional and sounded like she was only there to berate and belittle customers, I felt compelled to just close my accounts for good. Overall, would recommend if you just want an account for basic stuff because they do spending rewards now, but wouldn’t rely on them to be good people.

Chris Fisher

Chris Fisher

6 months ago

Firstmark has an all-round team that is has great customer relations. I had a one off mortgage question and the lady I worked with listened to the question and the concern but couldn't quite answer that moment and asked if she could call me back after looking into a few things. about 15mins later I received a call back with a very detailed explanation and response to my question. She went a step further and asked a few other questions to me to help her understand what I was trying to accomplish. She went above and beyond my expectations and this is why Firstmark and their team have multiple accounts with me and I'll anything I'm in the need of a loan of any sort, they will be the first one to attempt to get my business. Thank you FirstMark for Exceptional Customer Service!

Steve C

Steve C

7 months ago

I'm so glad I'm a Firstmark customer! I talked to a few people about refinancing, and they all took the time to help me out. No one rushed me, and everyone was super patient. Their online services are really easy to use, and so is the app. I'm really happy with Firstmark and tell everyone to check them out.

Dianne Hengst

Dianne Hengst

3 months ago

Don’t bank here, I have had four cases of fraud with their debit card and the last two happened after I made sure my card is locked at all times and I don’t use it. Clearly the leak is coming from them and I will be switching banks. I made my concerns known and asked for a reach out and they did not ever reach out.

Contact Tips

Best Time to Call

Weekdays 9am–4pm typically have the shortest wait times for new member inquiries.

What to Ask

  • • Current loan rates & terms
  • • Membership eligibility requirements
  • • Minimum deposit to open an account
  • • Online & mobile banking features

NCUA Insured

Your deposits are federally insured up to $250,000 per account category by the National Credit Union Administration (NCUA).