There are about 42,000 ZIP codes in the U.S., with each ZIP code containing an average of 3,100 households and 5 postal routes. For example, sending 1,000 postcards will cover roughly one-third of an average ZIP code. The coverage of your campaign will vary based on the number of properties in your targeted ZIP code. Remember, you don’t need to cover the entire area at once—you can spread your campaign over multiple week/months, targeting specific postal routes each week/month. Our team can help with this.