Taxes are determined by each municipality, not at the county level. There can be two towns very nearby with different tax bases
The suggestion that I have for you is to define the lifestyle characteristics which are most appealing to you in a community, and allow members of Trulia Voices to make suggestions on locations that meet your criteria with "low property taxes" being one of your high priority criteria. Price point for the property purchase is also important to include.
For example, Spring Lake has low property taxes, but the properties are not inexpensive. For someone who seeks to be near the shore, it's an excellent opportunity to have low taxes compared to other shore communities with housing in the same price points. Spring Lake may not even come close to meeting the other criteria on your list.
If you could share a bit more about what you seek, including price points, I am sure you will receive information more relevant to your preference.