Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats


Questions? 1-800-425-1169
ZIP Code API Service Level Agreement


99.9% availability services for customers are guaranteed to be available and responsive 99.9% of the time. If we don't meet this guarantee you are eligible for a service credit.

This API Service Level Agreement (“SLA”) governs the use of the API under the terms of the Terms of Service (the “TOS”) between DataSheer, LLC. (“”, “us” or “we”) and users of the API (“you” or “Customer”). This SLA applies separately to each account using the API. Unless otherwise provided herein, this SLA is subject to the terms of the TOS and capitalized terms will have the meaning specified in the TOS. reserves the right to change the terms of this SLA in accordance with the TOS.

1. Service Commitment will use commercially reasonable efforts to make the API available 99.9% of the time. In the event does not meet the goal of 99.9% API availability in a given calendar month (“Monthly Uptime Percentage”), you will be eligible to receive a Service Credit as described below.

2. Definitions

The following capitalized terms shall be given the meaning set forth below:

2.1 “Unavailable Time” means the API is not available for use according to third party performance and monitoring services contracted by at its sole discretion (the “Monitoring Service”). The Monitoring Service reports of availability is currently available at; provided that service issues or outages relating to any Exclusions (defined below) shall not be deemed as Unavailable Time.

2.2 “Monthly Uptime Percentage" is calculated by subtracting from 100% the percentage of continuous 5 minute periods during the Service Month in which the API was in a state of “Unavailable Time” as identified by a Monitoring Service.

2.3 A “Service Credit” is a dollar credit, calculated as set forth below, that may credit back to an eligible Customer account:

For a calendar month where the Uptime Monthly Percentage, as identified by Monitoring Service,, at its sole discretion after confirming the nature and accuracy of the Unavailable Time, will credit Customer’s account a percentage of that month’s billings, as defined by this table:

Monthly Uptime Percentage Service Credit
100% - 99.9% 0%
Less than 99.9% 10%

3. Credit Request and Payment Procedures

To receive a Service Credit, the customer must submit an email to within 30 days of the month in which the Unavailable Time occurred. The email must include:

  1. (i) "ZIP Code API SLA Claim" as the subject of the ticket.
  2. (ii) The dates and times of the Unavailable Time for which you are requesting credit.
  3. (iii) Any applicable information that documents the claimed outage.

A Service Credit shall be issued to Customer’s API account for future use or applied in the form of a partial refund. No cash value will be provided and it cannot be exchanged for, or converted to, monetary compensation. Service Credits may not be transferred or applied to any other account. The maximum service credit that we will issue for downtime in a month is 10% of the fees you otherwise owe us for that month.

4. Exclusions & Limitations

Notwithstanding anything to the contrary, no Unavailable Time shall be deemed to have occurred with respect to any unavailability, suspension or termination of the API, or any other API performance issues, that

  1. (i) Are caused by factors outside of’s reasonable control, including, without limitation, any force majeure event, carrier related problems or issues, or Internet access or related problems beyond the demarcation point of or its direct hosting subcontractors (i.e beyond the point in the network where maintains access and control over the Services);
  2. (ii) Result from any actions or inactions of Customer or any third party (other than’s direct hosting subcontractor);
  3. (iii) Result from Applications, equipment, software or other technology and/or third party equipment, software or other technology (other than third party equipment within’s direct control);
  4. (iv) Arise from’s suspension and termination of Customer’s right to use the Services in accordance with the TOS
  5. (v) Scheduled maintenance;
  6. (vi) Problems or issues related to alpha, beta or not otherwise generally available API features or products (collectively, the “Exclusions”).

5. Sole Remedy

Service Credits shall be your sole and exclusive remedy for any unavailability or non-performance of the API Services or other failure by us to provide the Services.

Portions of data provided by and © United States Postal Service 2024 and Canada Post 2024. is a non-exclusive licensee of the United States Postal Service. Postal Code OM is a registered trademark of Canada post.