SDN_2026_SWMS-R5_v01_M
Welfare Monitoring Survey Round V, 2026
Monitoring Food Security, Employment, Housing, Access to Market, and Crop and Livestock Production
SWMS R5 2026
| Name | Country code |
|---|---|
| Sudan | SDN |
Other Household Survey [hh/oth]
Now in its fifth round, this mobile phone survey series continues to track conditions on the ground across Sudan
Sample survey data [ssd]
-Household -Individual
Edited, anonymized dataset for public distribution.
2026-04-25
National (all 18 states).
| Name | Affiliation |
|---|---|
| Franck M. Adoho | World Bank |
| Tom Bundervoet | World Bank |
| Name | Affiliation | Role |
|---|---|---|
| Romeo J Gansey | World Bank | Survey design and data analysis |
| Name | Abbreviation | Role |
|---|---|---|
| The World Bank | WBG | Funder |
| Joint Data Center | JDC | Funder (refugee sample) |
The fifth round of the Sudan Welfare Monitoring Survey draws on a rigorous, probability-based sample of Sudanese adults (aged 18 and above) with mobile phone access, achieving nationwide coverage across all 18 states. Crucially, it also captures the voices of adult refugees — a population often left out of large-scale surveys — with a dedicated sample concentrated primarily in camp settings.
Sudanese respondents were selected through a one-stage random sampling process from a frame of 45,000 phone numbers provided by the implementation partner, further enriched by approximately 1,000 numbers gathered through household listings and focus group discussions. For the refugee population, a purpose-built sampling frame was constructed from updated household listings in major camps across Kassala and White Nile states, supplemented by random digit dialing (RDD) to achieve the required sample size. Refugee respondents were then drawn through the same one-stage random selection process.
To maximize response rates and minimize data gaps, the implementation partner made up to seven contact attempts per number when initial calls went unanswered or respondents were unavailable. In regions with limited or unstable network connectivity — particularly Darfur and Kordofan — the survey team deployed a robust random walk sampling technique, ensuring that even the most hard-to-reach communities were represented in the data.
To ensure the survey results are representative and account for differences in selection probabilities across the sample, household and individual weights were constructed using a maximum entropy approach. For Sudanese households, the weighting process anchors to the 2022 Labor Force Survey as the reference benchmark, with its geographic distribution adjusted to reflect current displacement patterns using the International Organization for Migration's Displacement Tracking Matrix (April 2026 update). For the refugee population, calibration weights were derived from UNHCR's population dashboard (March 2026), which provides the most up-to-date demographic profile of refugees currently residing in Sudan.
The fifth-round questionnaire was built around standardized, internationally recognized tools to ensure data quality and cross-topic comparability. Food insecurity questions were adapted from the World Food Programme's established indicators, grounding the survey in a globally validated measurement framework. The instrument was originally developed in English and subsequently translated into Arabic for administration in the field. It covered six core thematic sections: food insecurity, household characteristics (including displacement and employment status), housing conditions, access to markets, and crop and livestock production.
| Start | End |
|---|---|
| 2026-03-04 | 2026-04-25 |
| Name | Abbreviation |
|---|---|
| Voluntas | Voluntas |
Voluntas organized supervision using interval recording and random call back of a sub-sample. There were 59 data collectors and 10 office supervisors.
| Name | Affiliation |
|---|---|
| Franck M. Adoho | World Bank |
| Confidentiality declaration text |
|---|
| The dataset has been anonymized and is available as a Public Use Dataset. |
Use of the dataset must be acknowledged using a citation which would include:
Example:
Franck M. Adoho (World Bank), Tom Bundervoet (World Bank). Sudan - Welfare Monitoring Survey Round V 2026, Monitoring Food Security, Employment, Housing, Access to Market, and Crop and Livestock Production (SWMS R5 2026). Ref: SDN_2026_SWMS-R5_v01_M. Downloaded from [uri] on [date].
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
| Name | Affiliation | |
|---|---|---|
| Franck M. Adoho | World Bank | fadoho@worldbank.org |
DDI_SDN_2026_SWMS-R5_v01_M_WB
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Development Data Group | DECDG | World Bank | Documentation of the study |
2026-09-25
Version 01 (2026-09-25)
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