EM Lab P&K sells mold reports that break down information about mold spores by ZIP code. In addition, the American Academy of Allergy Asthma & Immunology's National Allergy Bureau makes available pollen and mold counts by area, as do many cities.
For instance, the city of Houston publishes a daily pollen and mold spore count on the city's website. Pollen.com also publishes daily pollen counts by ZIP code and makes available smartphone apps to alert allergy sufferers of vital pollen and mold information.
The EM Lab P&K mold reports include indoor and outdoor mold data listed by mold type, with numbers compared to the typical mold spore counts for that ZIP code by month and year.