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. 

[MicahCallough-Esri]

This is not something Esri would maintain. Since the US Census is done at a tract level, that is likely the best you will get from that data. What is driving the need to take it below tract level? Does your business process require that level of accuracy?

[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