I am filing the Form I-130 but my country of origin does not keep religious and census record documents. Is it okay to submit the form without these documents?

USCIS has replacement documents you can submit in place of the religious and census record documents if your country does not have them. You can check out this link to see what documents from your country of origin you can submit instead: https://travel.state.gov/content/travel/en/us-visas/Visa-Reciprocity-and-Civil-Documents-by-Country/.html