Population calculation within buffer zone

DiptiDhar

I am working on identifying factors contributing to fecal contamination. we have our location of interest. We want to know the total count of the human population from the 1 km radius buffer zone around each area. I know the procedures in arcGISPro (creating buffer zone and clipping population layer). My problem is I failed to search for a proper GIS layer carrying population data that will clip population counts only within the buffer zone. I downloaded GIS layers from the online portal, NHGIS, and some other sources, but they clip all the data that is even outside of the zone. What I am doing wrong here? and how could I find a proper Population GIS data file. I work on ArcGIS Pro.

RickeyFight

@DiptiDhar
Have you looked at this help doc?

https://pro.arcgis.com/en/pro-app/latest/help/editing/clip-features-using-another-feature.htm

DiptiDhar

Not really! I will check and get back to you. Thank you for sharing it with me.

DiptiDhar

@RickeyFight I have tried the intersection for the extent while doing the clip. This time on layers, it does intersect the polygon (census block), but the values i need like area, population, and household, they stay intact. The block areas extend from my buffer zone and i exactly need the population count within buffer zone. Probably i am not looking right gis file.

RickeyFight

So you want the populate total to change based on the buffer. I think you cannot use census tracts for this then since it is a polygon. I think you want a point layer.

DiptiDhar

Yes. I think so too. I can't intersect the values in polygon. I didn't find any gis point layer having population data.

RickeyFight

@DiptiDhar
https://www.esri.com/arcgis-blog/products/esri-demographics/developers/esris-2022-updated-demographi...

might be something you have to pay for. I know esri can calculate the population for you