|Date of birth||May 19, 1993|
|Place of birth||Lawrenceville, Georgia, United States|
|Height||6 ft 3 in (1.91 m)|
|2010–2011||United States U18||3||(0)|
|2011–2013||United States U20||10||(2)|
|2015||United States U23||1||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of June 27, 2017.
‡ National team caps and goals correct as of February 3, 2017
Youth and college
Zimmerman played college soccer at Furman University between 2011 and 2012. He was named First Team All-Conference 2011, Southern Conference Freshman of the Year 2011, and National Soccer Coaches Association of America NCAA Division I Men’s All-America Second Team in 2012.
FC Dallas selected Zimmerman in the first round (No. 7 overall) of the 2013 MLS SuperDraft. He made his professional debut on May 11, 2013 as a late substitute in a 2–1 victory against D.C. United.
Zimmerman earned his first cap and start against Jamaica in a January Camp friendly on 3 February 2017. He was named player of the match. 
- "SuperDraft '13 – FC Dallas snag Walker Zimmerman with the 7th pick". MLSsoccer.com.