1. Click Property Maps Portal and make sure you are on the screen below:
Property Map Portal

If not, click on the icon 

layer icon
2. Check the box in front of ELECTION PRECINCTS
Election Precincts
3. View Precincts on Map

Use the +/- icons to zoom in and out of the map or use your mouse scroll wheel to zoom in and out.

Precinct outline and precinct numbers will appear once zoomed in.

zoom in and out map
map with precinct numbers