Two recent incidents lead me to believe that Axis range is fairly broad. Two saturdays ago I spotted a group of mature and juvenile axis does feeding on the west side of 183 about 16 miles north of Lampasas. I don't think any of the group were males (from the size) but it was dark, I was going fast, and Axis males drop antlers throughout the year, so it's hard to tell. Then last Saturday I spotted a mature axis doe roadkill on the inside shoulder of southbound I-35 about 8 miles north of Schertz Parkway on the north side of San Antonio. All could have been escapees from exotic ranches, but I doubt it. Populations may be sporadic and not widely spread over all these counties, but axis deer have had 50+ years to slowly spread across Central Texas, the Edwards plateau and beyond.
they have def. expanded their range, but in a lot of these areas there pockets of them, not large populations.
I saw one dead on hwy 90 between Hondo and Castroville last week but there isn't large populations of them in that area.