If you have already completed the census only to realize you left off your baby, young child, or someone else living in your household on April 1st, you can correct your census submission. The Census Bureau along with its partner Count All Kids offer guidance on how to make corrections on forms that have already been submitted.
If you submitted an online form:
If you feel you have made a mistake, you can return to the online questionnaire and resubmit your information. The Census Bureau has procedures in place to resolve duplicate submissions. If you’ve already responded using your Census ID, select the link that reads “If you do not have a Census ID, click here” to submit a corrected response for your address. Be sure to respond for everyone who was living at your address on April 1.
If you submitted a paper form:
If you need to make a correction to a response on your paper questionnaire, carefully draw a line through the incorrect entry. Then, write the correct information as close as possible to what you crossed out. If you checked the wrong box, just draw a line through it and mark the correct box for the question.
You cannot make changes to your questionnaire once you have mailed it back. If you have serious concerns about your response, you can complete the questionnaire again online.
For additional information, check out https://countallkids.org/fixing-an-incorrect-census-submission/
