The Protest Deadline for most property owners in Williamson County was May 15, 2023.

See your Notice of Appraised Value for your specific deadline.

Per Texas Property Tax Code 41.44(a)(1)

2012 Certification Packets

City of Austin CAU
City of Bartlett CBA
City of Cedar Park CCP
City of Florence CFL
Granger, City of CGR
Georgetown, City of CGT
Hutto, City of CHU
Jarrell, City of CJA
Leander, City of CLE
Liberty Hill, City of CLH
Pflugerville, City of CPF
Round Rock, City of CRR
Taylor, City of CTA
Thorndale, City of CTD
Thrall, City of CTH
Weir, City of CWE
Brushy Creek MUD DA DBC
Williamson County ESD #3 F00
Williamson County ESD #4 F01
Williamson County ESD #5 F02
Williamson County ESD #6 F03
Williamson County ESD #7 F07
Williamson County ESD #8 F08
Williamson County ESD #9 F09
Williamson County ESD#10 F10
Williamson County ESD#11 F11
Williamson County ESD#12 F12
Williamson County ESD #1 F90
Williamson County ESD #2 F91
Williamson County GWI
Williamson County WSID #3 I00
Austin Community College J01
EWC Higher Ed Center J02
Anderson Mill Limited District L01
Block House MUD M10
Brushy Creek MUD M12
North Austin MUD #1 M15
Meadows of Chandler Creek MUD M16
Williamson-Travis MUD #1 M17
Fernbluff MUD M18
Vista Oaks MUD M21
Williamson County MUD #10 M23
Williamson County MUD #11 M24
Ranch At Cypress Creek MUD M25
Wells Branch MUD M27
Williamson County MUD #12 M28
Williamson County MUD #13 M29
Walsh Ranch MUD M33
Sonterra MUD M34
Stonewall Ranch MUD M35
Paloma Lake MUD #1 M38
Paloma Lake MUD #2 M39
Williamson County MUD # 19 M40
Parkside At Mayfield Ranch M41
Williamson County MUD #15 M42
Williamson County MUD # 22 M45
Highlands at Mayfield Ranch MUD M46
Lakeside MUD #3 M47
Williamson County MUD #1 M48
Georgetown Village PID 1 P00
Avery Ranch Road District # 1 R02
Williamson County FM/RD RFM
Bartlett ISD SBA
Coupland ISD SCO
Florence ISD SFL
Granger ISD SGR
Georgetown ISD SGT
Jarrell ISD SJA
Leander ISD SLE
Liberty Hill ISD SLH
Lexington ISD SLX
Pflugerville ISD SPF
Round Rock ISD SRR
Taylor ISD STA
Thorndale ISD STD
Thrall ISD STH
Donahoe Creek WS W01
Williamson-Travis WCID #1D W05
Upper Brushy Creek WC&ID 1A W09
Lakeside WC&ID 2A W12
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