---
title: "2023 National Public Opinion Reference Survey (NPORS) Dataset"
description: "NPORS is a survey of U.S. adults. We use an address-based sample frame and invite sampled addresses by mail. Respondents complete the survey by web, mail or phone. Learn more about how Pew Research Center uses NPORS. This download contains case-level survey microdata and may include supporting documentation such as: Dataset details SAMPLE FRAME USPS address […]"
date: "2026-10-22"
authors:
  - name: "Jess Ludwig"
url: "https://www.pewresearch.org/2023-national-public-opinion-reference-survey-npors-dataset/"
---

# 2023 National Public Opinion Reference Survey (NPORS) Dataset

NPORS is a survey of U.S. adults. We use an address-based sample frame and invite sampled addresses by mail. Respondents complete the survey by web, mail or phone. Learn more about [how Pew Research Center uses NPORS](https://www.pewresearch.org/methods/2025/07/23/how-pew-research-center-uses-its-national-public-opinion-reference-survey-npors/).

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[Download Dataset]

This download contains case-level survey microdata and may include supporting documentation such as:

- Dataset (CSV and SAV)

- Questionnaire

- Codebook

- Methodology report

## Dataset details

**SAMPLE FRAME**

USPS address file

**COLLECTION MODES**

Web and paper

**SAMPLE SIZE**

5,733

**FIELD DATES**

May 19 - September 5, 2023

**COUNTRY**

United States

**UNIVERSE**

National adult

**RESPONSE RATE**

31%

**SURVEY ORGANIZATION**

Ipsos

## Recommended citation

Pew Research Center. 2023. “2023 National Public Opinion Reference Survey (NPORS) Dataset.”

## About Pew Research Center datasets

We make the case-level microdata used for much of our research available to the public for secondary analysis after a period of time. The microdata is available in CSV and SAV format and can be analyzed in tools such as Excel, R, SPSS and SAS. Learn more about [how to access and use our datasets](https://www.pewresearch.org/short-reads/2021/10/22/how-to-access-pew-research-center-survey-data/).

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