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Boulder County, CO Sex Offenders

Browse 463 registered sex offenders in Boulder County, CO. Each profile includes publicly available information released by official registry agencies and may include photographs, reported addresses, offense information, physical descriptions, aliases, and other identifying details when available. Click any profile to view the complete public registry profile, nearby registered offenders, and related location information. Records are updated as official registry agencies publish changes.

  • Lyle Reid French a registered of Colorado

    Lyle Reid French 1639 Whitehall Dr,
    Longmont, CO 80504

    Offense:

    AT-RISK ADULT-SEX ASSAULT 2-CAUSE SUBMISSION

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  • Marcello Maragni a registered of Colorado

    Marcello Maragni 1968 Mccall Pl #6,
    Longmont, CO 80501

    Offense:

    SEX ASSLT - VIC INCAPABLE OF APPRAISING CONDUCT - ATTEMPT

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  • Marco Tabone a registered of Colorado

    Marco Tabone 1323 Alexandria St,
    Lafayette, CO 80026

    Offense:

    SEX ASSAULT/CHILD-ATT

    ASSAULT 2-CAUSE SERIOUS BODILY INJURY

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  • Marcos Silva a registered of Colorado

    Marcos Silva 3200 Airport Rd,
    Boulder, CO 80301

    Offense:

    ASSAULT 2 - STRANGULATION: CRS 18-3-203(1)(I)

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  • Mariano Perez-raymundo a registered of Colorado

    Mariano Perez-raymundo 236 Main St,
    Longmont, CO 80501

    Offense:

    ASSAULT 2-STRANGULATION

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  • Mario Romero Amaral a registered of Colorado

    Mario Romero Amaral 000 Unhoused,
    Longmont, CO 80504

    Offense:

    CALIFORNIA PENAL CODE 288(A) CHILD MOLESTATION

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  • Mark Emory Mcclendon a registered of Colorado

    Mark Emory Mcclendon 3383 Madison Ave #w226,
    Boulder, CO 80303

    Offense:

    AT-RISK-SEXUAL CONTACT-NO CONSENT

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  • Mark Timothy Lewis a registered of Colorado

    Mark Timothy Lewis 330 Pikes Peak Pl,
    Longmont, CO 80504

    Offense:

    Sexual Exploitation/child-induce/entice

    Sexual Exploitatin/child-induce/entice

    Sex Assault/child/pos trust/vic 15-18

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  • Mark Timothy Lewis a registered Sex Offender of Colorado

    Mark Timothy Lewis 330 Pikes Peak Pl,
    Longmont, CO 80504

    Offense:

    08/18/2005 SEXUAL EXPLOITATION/CHILD-INDUCE/ENTICE

    08/18/2005 SEXUAL ASSAULT ON A CHILD IN A POSITION OF TRUST

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  • Mark Christopher Koppa a registered of Colorado

    Mark Christopher Koppa 1959 Piper St,
    Superior, CO 80027

    Offense:

    SEX ASSAULT 1 - VICTIM HELPLESS

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  • Mark Thomas Ployhar a registered of Colorado

    Mark Thomas Ployhar 707 W Lucerne Dr,
    Lafayette, CO 80026

    Offense:

    POSSESSION OF CHILD PHONOGRAPHY

    POSSESSION OF CHILD PORNOGRAPHY

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  • Mark Preston Leroy a registered of Colorado

    Mark Preston Leroy 46781 Hwy 72 Cabin #3,
    Ward, CO 80481

    Offense:

    OOSAL: 1ST DEGREE SEXUAL ABUSE

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  • Marlin Anthony Whitley a registered of Colorado

    Marlin Anthony Whitley 454 Morgan Rd,
    Longmont, CO 80501

    Offense:

    SEXUAL EXPLOITATION/CHILD-POSSESS

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  • Martin Ian Spector a registered of Colorado

    Martin Ian Spector 3135 Arnett St, #1,
    Boulder, CO 80304

    Offense:

    3RD DEGREE ASSAULT - FALSE MED EXAM

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  • Martin Evan Geist a registered of Colorado

    Martin Evan Geist 4475 N Broadway, #67,
    Boulder, CO 80304

    Offense:

    ATTEMPTED SEXUAL ASSAULT ON A CHILD

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  • Martin Kyle Coppedge a registered of Colorado

    Martin Kyle Coppedge 1517 Ashcroft Dr,
    Longmont, CO 80501

    Offense:

    Sex Assault/child-att

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  • Marvin Louis Johnson a registered of Colorado

    Marvin Louis Johnson 224 Seward St Apt A3,
    Lyons, CO 80540

    Offense:

    ATTEMPTED INCEST

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  • Mason Keith Mitchell a registered of Colorado

    Mason Keith Mitchell 0000 Homeless,
    Boulder, CO 80301

    Offense:

    SEXUAL EXPLOITATION/CHILD - POSS MATER - CSP

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  • Mathew Gill Gosvener a registered of Colorado

    Mathew Gill Gosvener 12 Clarabell Ln,
    Allenspark, CO 80510

    Offense:

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  • Matthew Howard Cory a registered of Colorado

    Matthew Howard Cory 3200 Airport Rd,
    Boulder, CO 80301

    Offense:

    SEXUAL EXPLOITATION /CHILD POSS MATERIAL

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  • Matthew David Lewis a registered of Colorado

    Matthew David Lewis 0000 Lacks A Fixed Residence,
    Longmont, CO 80504

    Offense:

    ATTEMPTED SEXUAL ASSAULT-OVER COME VICTIMS WILL

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  • Matthew Harold Johnson a registered of Colorado

    Matthew Harold Johnson 00 Transient,
    Longmont, CO 80501

    Offense:

    SEXUAL EXPLOITATION/CHILD - POSS MATERIAL

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  • Matthew T Moss a registered Sex Offender of Colorado

    Matthew T Moss 1814 Mallard Dr,
    Superior, CO 80027

    Offense:

    0999700 - AGG CRIM SEX AB/VIC 13-16

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  • Maxwell Joseph Naha a registered of Colorado

    Maxwell Joseph Naha 1770 21st St,
    Boulder, CO 80302

    Offense:

    SEX EXPLOIT CHILD-VIDEO

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  • Micah Lee Rutland a registered of Colorado

    Micah Lee Rutland 3200 Airport Rd,
    Boulder, CO 80301

    Offense:

    SEXUAL EXPLOITATION/CHILD-POSSESS-ER

    SEX EXPLOIT CHILD-VIDEO-ER

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  • Micajah Austin Zajic a registered of Colorado

    Micajah Austin Zajic 246-1/2 Main St #205,
    Longmont, CO 80501

    Offense:

    SEXUAL EXPLOITATION/CHILD-SELL/PUBLISH

    SEXUAL EXPLOITATION/CHILD-SELL/PUBLISH

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  • Michael David Aisner a registered of Colorado

    Michael David Aisner 60 North Cedar Brook Rd,
    Boulder, CO 80304

    Offense:

    SEX EXPLOIT CHILD - VIDEO/20+ ITEMS

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  • Michael Thomas Kleiber a registered of Colorado

    Michael Thomas Kleiber 4869 N Broadway,
    Boulder, CO 80304

    Offense:

    CRIMINAL SEXUAL CONDUCT- FIRST DEGREE- PENETRATION - ARMED W/ DANGEROUS WEAPON

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  • Michael Wayne Kline a registered of Colorado

    Michael Wayne Kline 0000 Iris/broadway,
    Boulder, CO 80301

    Offense:

    2ND DEGREE CRIMINAL SEXUAL CONDUCT

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  • Michael Smith a registered of Colorado

    Michael Smith 1598 Bradley Dr,
    Boulder, CO 80305

    Offense:

    Sex Assault/child

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