Required for specific countries to visit Sweden for business/conference purpose or to visit family and friends. http://www.swedenabroad.com/en-GB/Embassies/Washington/Visit-Sweden/Visa-Information/
VFS Global handle these applications. Make an appointment online: http://www.vfsglobal.se/USA/
Then visit a VFS Global office with the required documents and to do the biometrics.
The VFS Global Houston address is:
2425 W Loop S, Suite 330, Houston, TX 77002
Phone (common for US): 347-329-2738
If you obtained a visa to visit Sweden or another European Schengen country within the last 5 years, you may be able to apply through regular mail.
Before applying, please contact us at the consulate for advice.
Also see: studyinsweden.se
Residence /Work Permit
Residence/work permit applications are handled by the Swedish Migration Agency: https://www.migrationsverket.se/
All interviews related to residence/work permit are performed at the Embassy in Washington, please contact the Embassy to schedule your interview. Interviews are by appointment only.
You will also find useful info at: https://www.swedenabroad.se/en/about-sweden-non-swedish-citizens/