AttorneyLyndsay E. Dematteo● 20 total views
LD

Lyndsay E. Dematteo

Minnehaha County Public Defender's Office·Sioux Falls, SD·1 years licensed

Lyndsay E. Dematteo is a lawyer in Sioux Falls, SD who works for Minnehaha County Public Defender's Office. Practice areas include Criminal. Licensed in Texas since 2024. Graduated from Valparaiso University in 2005.

Claim profileContact attorney
Law school
Class of 2005
Bar admission
2024
State Bar of TX · No. 24145077
Office
413 N. Main Ave.
Sioux Falls, SD 57104
Disciplinary
None on record
Clean since admission
LD
Sioux Falls, SD·1 years licensed
Claim profileContact attorney

Lyndsay E. Dematteo is a lawyer in Sioux Falls, SD who works for Minnehaha County Public Defender's Office. Practice areas include Criminal. Licensed in Texas since 2024. Graduated from Valparaiso University in 2005.

Law school
Bar admission
2024
State Bar of TX · No. 24145077
Office
413 N. Main Ave.
Sioux Falls, SD 57104
Disciplinary
None on record
Clean since admission
Career history

2 observed firms

Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.

  1. Minnehaha County Public Defender's OfficAS OF APR 2026
    Private Law Practice · Sioux Falls, SD
  2. Minnehaha County Public Defender's OfficeAS OF JUN 2026
    Private Law Practice · Sioux Falls, SD
Case data

Case data

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Practice & jurisdiction
Practice areas
  • Criminal
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Last refreshed Jun 2026