you can go here and actually get the day-by-day information to compare from 2016.
https://www.sos.texas.gov/elections/earlyvoting/2016/index.shtml
The number of democrats voting in the primary is WAY above where it was in 2016. I'm sure some is attributable to feeling like there wasn't much to vote about in the D primary in 2016, but still, I think this indicates a lot of voter energy on the D side. Biggest counties through Day 7 of the primaries in 2016:
County
Party
Reg Voters
# In Person On 2/22/2016
Cumulative In-Person Voters
Cumulative % In-Person
Cumulative By Mail Voters
Cumulative In-Person And Mail Voters
Cumulative Percent Early Voting
Harris
Republican
2,102,820
7,906
40,547
1.93%
14,681
55,228
2.63%
Harris
Democratic
2,102,820
4,983
28,344
1.35%
10,180
38,524
1.83%
Dallas
Republican
1,217,771
4,717
27,672
2.27%
3,560
31,232
2.56%
Dallas
Democratic
1,217,771
4,325
27,318
2.24%
2,400
29,718
2.44%
Tarrant
Republican
1,019,633
6,969
32,910
3.23%
5,649
38,559
3.78%
Tarrant
Democratic
1,019,633
3,164
15,430
1.51%
5,190
20,620
2.02%
Bexar
Republican
977,150
4,446
21,050
2.15%
1,901
22,951
2.35%
Bexar
Democratic
977,150
3,748
21,554
2.21%
3,938
25,492
2.61%
Travis
Republican
667,116
2,574
11,002
1.65%
987
11,989
1.80%
Travis
Democratic
667,116
4,286
21,811
3.27%
3,515
25,326
3.80%
Tribune has through day 7
HARRIS: 60.9K D, 58.1K R
DALLAS: 39.2K D, 20.3K R
TARRANT: 29.5K D, 33.0K R
BEXAR: 40.0K D, 23.8K R
TRAVIS: 41.5K D, 11.5K D
HUGE DEMOCRAT SWINGS.
2020 MINUS 2016
Percent Increase over 2016
2020 MINUS 2016
Percent Increase over 2016
HARRIS (R)
HARRIS (D)
2,872
5.20%
22,376
58.08%
DALLAS
DALLAS
-10,932
-35.00%
9,482
31.91%
TARRANT
TARRANT
-5,559
-14.42%
8,880
43.06%
BEXAR
BEXAR
849
3.70%
14,508
56.91%
TRAVIS
TRAVIS
-489
-4.08%
16,174
63.86%