The island's semi-autonomous government was criticized for its lack of preparedness and dependence on power from mainland Tanzania.

The failure originated in mainland Tanzania.

Almost all mobile and Internet companies serving mainland Tanzania are also available in Zanzibar.

The survey covered both mainland Tanzania and Zanzibar.

Multi-party general elections were held on mainland Tanzania and Zanzibar on 31 October 2010.

It lies 50 kilometres east of mainland Tanzania, across the Pemba Channel.

Though this increase would appear satisfactory, the region in this respect ranked 8th among other regions in mainland Tanzania during the year 2000.

As of 2002, water use for municipal water supply in mainland Tanzania was about 493 million m/year, or 0.5% of total renewable water resources.

At age 13, after a forced marriage, she fled Zanzibar to mainland Tanzania.

More than 7,000 extra troops were last week shipped from mainland Tanzania to the Zanzibar archipelago in preparation for yesterday's election.