[7] As 1990, the Iranian Shia in Houston primarily used the ISGH mosques for occasional needs including marriages and funerals.

Public fundraising dinners and anonymous donations provided the funds for the construction of the permanent Al-Noor mosque.

A hafiz could influence his members to vote and affect policies in the entire ISGH system.

In 2011 the historic Houston mosque was renamed Masjid Warithudeen Mohammed in honor of one of America's pioneering Muslim leaders.

This community has always focused on local activism and interfaith outreach, addressing issues of social justice and the uplifting of disfranchised people that continues to this day.

Always growing, ISGH currently operates nineteen community centers, six full-time private schools, four community health clinics, three full-service funeral homes and burial ground, along with weekend Islamic schools, recreational facilities, and a hifz program, with over 150 students who have memorized the Qu'ran.

[citation needed] ISGH quickly gained success as a platform for all Houston Muslims because of its structure and bylaws.

The first generation of ISGH leadership recognized the size of the greater Houston area and planned accordingly.

These zones divide the distances among sections of town as follows: North, Northwest, South, Southeast and Southwest.

Each zone, like the organization as a whole, has elected leadership who work to coordinate the activities and needs of the community in their areas.

[citation needed] In total the greater Houston area is home to about 100 Muslim and Islamic organizations, including many independent mosques and community-service focused nonprofits.

[14] In 2000 Badr wrote that "The role of the clergy in the organizational structure of the ISGH has been an area of contention in the Muslim community.

[16] Badr wrote that Houston huffaz often have views in opposition to those in the main leadership, and she added that they originate from various countries "and rarely agree on any issue—big or small—facing the Muslim community.

[18] In 2000 Badr wrote that Muslims "remain fragmented along ethnic lines" and this is mainly due to increased immigration.

The Northern zonal council has tried to remedy this by obtaining a group of members of various ethnic backgrounds.

[18] Others include Anglos, Southeast Asians, Pacific Islanders, South Americans, and Europeans.

[18] As part of its zakat services, the ISGH has special food stamps which can be used to pay bills and rent, bus fare, and items from Muslim grocery stores.