Karoi's geography has always been its economy. The town lies 85 kilometers northwest of Chinhoyi, the nearest large city and the provincial headquarters of Mashonaland West, and another 200 kilometers from Harare. Continue northwest along the A-1 another 135 to 170 kilometers and you reach Lake Kariba, the Kariba Dam, and the Zambian border crossing at Chirundu. That alignment makes Karoi a natural waypoint. The Twin River Inn, about 1.6 kilometers north of the town center on the road to Kariba, and the Karoi Hotel in the heart of town are the two main lodgings, and both are oriented toward travelers who need a bed for the night rather than a vacation. The farming village of Tengwe lies 30 kilometers southwest, its name woven into the same rural economy.

The country around Karoi carries a complicated history that deserves to be told straight. Before colonial occupation, the land was farmed and settled by Shona-speaking communities whose descendants still live across Mashonaland West. In 1945, after World War II, the government of Southern Rhodesia designated the Karoi area as a farming zone set aside for white veterans, who were given land grants and support to establish commercial farms. That act of allocation displaced and dispossessed Black Zimbabwean communities whose claims to the same land were older and whose treatment by colonial authorities was, in the gentlest possible phrasing, unjust. The veterans who arrived took up tobacco. The crop thrived in the soils and altitudes of the region, and tobacco became the economic engine that pulled Karoi from a wayside halt into a proper town. The inheritance of that era, and the later land reforms of the 2000s, is still being worked out across Zimbabwean farming country today.

Tobacco remains Karoi's primary cash crop and its central economic activity. In 2011, the Tobacco Industry and Marketing Board allowed Mashonaland Tobacco Company to open auction floors and buy leaf directly in the town, a meaningful shift that let farmers sell closer to home. Controversy followed in 2012 over purchases from uncontracted farmers, a recurring tension in a commodity chain where buyers, contracted growers, and independent smallholders all compete for the same crop. Walk through Karoi during the curing and auction season and the town smells, faintly but unmistakably, of drying leaf. Trucks loaded with bales roll south to Harare, where the international buyers set the prices that determine whether a Karoi farmer has a good year or a hard one. In recent decades, regional and global markets have made those prices volatile, and the town's fortunes have risen and fallen with them.

Population numbers tell a story of steady growth. In the 1992 national census, Karoi had an estimated 14,763 residents. By 2004, that number had risen to 25,030, and the town has continued to expand since. Its suburb of Chikangwe lies about two kilometers east of the central business district and has grown into a significant community with its own secondary school, Chikangwe High School, alongside Karoi High School in the center of town. The town's offices handle both municipal government, through the Karoi Town Council, and district administration for the surrounding countryside. The local population is predominantly Shona. The economy remains predominantly agricultural. The skyline remains predominantly low. Karoi is not a tourist town, and it makes no pretense to be one.

The best way to understand Karoi is to pass through it slowly. The A-1 runs straight and fast, and most travelers encounter the town as a handful of signs, a filling station, a stretch of businesses, and a turn onto the road to Kariba. Stop for a meal. Walk into the market. Talk to a farmer about the weather, which is the thing that actually decides the tobacco yield each season. The folkloric witch who gave the town its name has vanished into the mist of missing stories, but the name sits there on the signs in Shona and English, reminding anyone who reads it that this country holds more history than the colonial maps ever bothered to record. For every road that runs through Zimbabwe, there are older names and older people. Karoi remembers at least one of them, even if nobody alive can tell you quite what the memory means.