Monroe County Tax Collector Office Monroe County Tax Collector Office Search | Advanced Search | New Members | Coupons and Discounts | All Categories If you have any questions for the company listed, for your convenience you can send a message. You must include your name, phone number and the best time for them to contact you.   Family, Community & Non-Profit >> Chamber Supporters Monroe County Tax Collector Office 1200 Truman AveKey West, FL 33040 305-295-5051 Visit Site Send a message to: Monroe County Tax Collector Office Your Name: Your Email: Subject: Message: (Date: 5/31/2025)