The vast majority of universities offer credit through IB exam, similar to AP.  Each college has its own policies for credit hours awarded, and these are updated regularly, so please contact universities for current policies.  Some direct links to policies are below.  Remember that students who earn the IB Diploma are guaranteed 24 credit hours at any Texas public university!  

University of Houston - ask the counselor once admitted or email.  Generally is one of the most generous with credit hours.

Texas A&M (College Station) - Credit by exam https://testing.tamu.edu/TestingServices/media/Media/PDFs/AP_IB.pdf

University of Texas (Austin) - Credit by exam https://testingservices.utexas.edu/search-undergraduate-exams?field_type_tid%5B%5D=16&field_type_tid%5B%5D=17

TCU - Credit by exam https://admissions.tcu.edu/apply/freshman/college-credits/credit-by-exam.php#international-baccalaureate

Trinity - Credit by exam https://inside.trinity.edu/sites/inside.trinity.edu/files/file_attachments/311/international-baccalaureate-credit-2019-2020.pdf

St. Edwards - Credit by exam

 https://stedwards.app.box.com/s/tyybtyoru5h9arfmhozqyzbwa8p5r7z0

Texas Tech - Credit by exam https://www.depts.ttu.edu/testing/uce.php

Baylor - Credit by exam https://www.baylor.edu/irt/index.php?id=74596

SMU - IB Scholarship https://www.smu.edu/EnrollmentServices/FinancialAid/TypesOfAid/Scholarships/Academic/IBScholars

-see counselor once admitted

https://www.smu.edu/Provost/ProvostOffice/SAES/UAC/Incoming-Students/AP-IB-Dual-Credit

Texas State -Credit by exam https://www.txstate.edu/internationalminds/admission/International-Baccalaureate--IB-.html

Texas Southern - see counselor once admitted

LSU - https://catalog.lsu.edu/mime/media/19/4357/IB_2019-2020.pdf

Tulane - Credit by exam (HL only)

https://admission.tulane.edu/academics/earning-college-credit/ap-ib-exams

University of Alabama - https://catalog.ua.edu/undergraduate/about/academic-regulations/policies/credit-by-examination/

Arizona State University - https://catalog.asu.edu/credit_exam#IB

University of Arizona - https://catalog.arizona.edu/policy/international-baccalaureate-ib-program

University of Arkansas - http://catalog.uark.edu/undergraduatecatalog/academicregulations/advancedstandingprograms/#internationalbaccalaureatetext

Austin College - https://www.austincollege.edu/wp-content/uploads/2010/03/International-Baccalaurate-Departmental-Credit-Policies-Updated-9-29-2014.pdf

Boston University - credit for HL w/ a score of 5+

https://www.bu.edu/admissions/files/2018/05/ib_course_equivalence.pdf

Carnegie Mellon University - https://www.cmu.edu/hub/registrar/docs/ib-credit.pdf

University of Chicago - http://collegecatalog.uchicago.edu/thecollege/examinationcreditandtransfercredit/

Clark Atlanta University - https://www.cmu.edu/hub/registrar/docs/ib-credit.pdf

University of Colorado at Boulder - https://catalog.colorado.edu/undergraduate/admissions/credit-examination/#internationalbaccalaureateibcredittext

Columbia University - https://www.ccis.edu/offices/registrar/evaluations/transferguides/internationalbaccalaureate.aspx

University of Dallas - https://udallas.edu/offices/registrar/ap-ib-credits.php

University of Denver - https://www.du.edu/registrar/newstudent/media/documents/ib20192020.pdf

The George Washington University - https://undergraduate.admissions.gwu.edu/bring-credits-gw

Georgia Institute of Technology - http://catalog.gatech.edu/academics/undergraduate/credit-tests-scores/international-baccalaureate-exams/

University of Georgia - ask once admitted

Houston Baptist University - https://hbu.edu/publications/admissions/Credit%20by%20Examination%20Requirements.pdf

Howard University - https://www2.howard.edu/sites/default/files/TransferCreditPolicy_150601.pdf

Lamar University - https://www.lamar.edu/catalog/undergraduate-admissions/index.html

Louisiana State University - https://catalog.lsu.edu/mime/media/19/4355/COLLEGE+BOARD+ADVANCED+2019-2020.pdf

University of Mary Hardin-Baylor - https://go.umhb.edu/resources/testing/credit-by-exam-chart

University of Michigan - https://admissions.umich.edu/apply/freshmen-applicants/ap-ib-credit

University of Mississippi - https://catalog.olemiss.edu/2014/fall/academics/regulations/credit/international-baccalaureate

New York University - https://www.nyu.edu/admissions/undergraduate-admissions/how-to-apply/standardized-tests.html#IBDiploma

University of North Carolina at Chapel Hill - (scroll down)

https://catalog.unc.edu/policies-procedures/credit-evaluation/#text

University of North Texas - https://www.unt.edu/academics/undergrad/credit-examination

Northeastern University - 

http://catalog.northeastern.edu/undergraduate/admission/admission-policy-entrance-requirements/

University of Oklahoma - 

http://www.ou.edu/admissions/apply/transfer-credits/international-baccalaureate

University of Oregon - https://registrar.uoregon.edu/current-students/alternative-ways-to-earn-credit/international-baccalaureate-exam-charts

Pennsylvania State University - https://admissions.psu.edu/academics/credit/ib/

University of Pennsylvania - https://admissions.upenn.edu/admissions-and-financial-aid/preparing-for-admission/freshman-admission/external-exam-credit

Prairie View A&M University - http://www.pvamu.edu/universitycollege/wp-content/uploads/sites/71/International-Baccalaureate-Chart.pdf

Rice University - 2019-20 policies https://registrar.rice.edu/sites/g/files/bxs751/f/2019%20-%202020%20IB%20EXAM%20LISTING.pdf

Sam Houston State University - receive a score of 4+

 https://www.shsu.edu/centers/testing-center/IBProgram.html

University of Southern California - https://arr.usc.edu/services/articulation/ib_exam_credit.html

Stephen F. Austin University - http://catalog.sfasu.edu/content.php?catoid=1&navoid=41

Vanderbilt University - 

https://www.vanderbilt.edu/catalogs/documents/UGAD.pdf#page=34

Washington University in St. Louis - https://artsci.wustl.edu/resources/international-baccalaureate-procedures

Xavier University of Louisiana - https://www.xula.edu/ib-credit