The Asthma and Allergy Foundation of America has published the Spring Allergy Capitals for 2008
(pdf file). These are the 100 most challenging places to live in for someone who has hay fever or pollen allergies. the ranking has been based on three factors: pollen scores (airborne grass/tree/weed pollen and mold spores), number of allergy medications used per patient, and number of allergy specialists per patient.

Here are the top 10 in the list:
1. Lexington, KY
2. Greensboro, NC
3. Johnson City, TN
4. Augusta, GA
5. Jackson, MS
6. Knoxville, TN
7. Birmingham, AL
8. New Orleans, LA
9. Little Rock, AR
10. San Diego, CA

For the rest of the list, see the pdf file above. If your city is not included in the top 100 and you would like to know the pollen scores in your area, check with Pollen.com.