There's a map for that, it seems!

Check out the Draft Comprehensive Plan (chapters) for the City of Harrisonburg where you'll find all sorts of interesting maps, including:

• Existing Land Use Maps
• Zoning Maps
• Draft Land Use Guide Maps

The Land Use Guide (draft for inclusion in the 2019 comprehensive plan is shown above) recommends future land uses, but is not regulatory.  That is to say that if a piece of undeveloped land is zoned for residential use, but is shown in a "Mixed Use" area in the Land Use Guide map, then staff would likely look favorably upon a future request for rezoning to a mixed use designation.

Check out all of the draft chapters of the Comprehensive Plan here.