diff --git a/defaults/population_weights.tsv b/defaults/population_weights.tsv
index a1b3b94ca..d7d4378af 100644
--- a/defaults/population_weights.tsv
+++ b/defaults/population_weights.tsv
@@ -1,240 +1,240 @@
 # [DO NOT EDIT] This file was generated by scripts/developer_scripts/get_population_weights
-# Last updated on 2024-08-06
+# Based on 2023 population estimates from the United Nations World Population Prospects
 country	weight
-Burundi	13689
-Union of the Comoros	850
-Djibouti	1152
-Eritrea	3470
-Ethiopia	128691
-Kenya	55339
-Madagascar	31195
-Malawi	21104
-Mauritius	1273
-Mayotte	316
-Mozambique	33635
-Réunion	874
-Rwanda	13954
-Seychelles	127
-Somalia	18358
-South Sudan	11483
-Uganda	48656
-Tanzania	66617
-Zambia	20723
-Zimbabwe	16340
-Angola	36749
-Cameroon	28372
-Central African Republic	5152
-Chad	19319
-Republic of the Congo	6182
-Democratic Republic of the Congo	105789
-Equatorial Guinea	1847
-Gabon	2484
-Sao Tome and Principe	230
+Afghanistan	41454
+Albania	2811
 Algeria	46164
-Egypt	114535
-Libya	7305
-Morocco	37712
-Sudan	50042
-Tunisia	12200
-Western Sahara	579
-Botswana	2480
-Eswatini	1230
-Lesotho	2311
-Namibia	2963
-South Africa	63212
+American Samoa	47
+Andorra	80
+Angola	36749
+Anguilla	14
+Antigua and Barbuda	93
+Argentina	45538
+Armenia	2943
+Aruba	107
+Australia	26451
+Austria	9130
+Azerbaijan	10318
+Bahamas	399
+Bahrain	1569
+Bangladesh	171466
+Barbados	282
+Belarus	9115
+Belgium	11712
+Belize	411
 Benin	14111
+Bermuda	64
+Bhutan	786
+Bolivia	12244
+Bonaire	29
+Bosnia and Herzegovina	3185
+Botswana	2480
+Brazil	211140
+British Virgin Islands	38
+Brunei	458
+Bulgaria	6795
 Burkina Faso	23025
+Burundi	13689
 Cabo Verde	522
-Côte d'Ivoire	31165
-Gambia	2697
-Ghana	33787
-Guinea	14405
-Guinea-Bissau	2153
-Liberia	5493
-Mali	23769
-Mauritania	5022
-Niger	26159
-Nigeria	227882
-Saint Helena	5
-Senegal	18077
-Sierra Leone	8460
-Togo	9304
-Kazakhstan	20330
-Kyrgyzstan	7073
-Tajikistan	10389
-Turkmenistan	7364
-Uzbekistan	35652
+Cambodia	17423
+Cameroon	28372
+Canada	39299
+Cayman Islands	73
+Central African Republic	5152
+Chad	19319
+Chile	19658
 China	1422584
 Hong Kong	7442
 Macao	713
 Taiwan	23317
-Dem. People's Republic of Korea	26418
-Japan	124370
-Mongolia	3431
-South Korea	51748
-Afghanistan	41454
-Bangladesh	171466
-Bhutan	786
-India	1438069
-Iran	90608
-Maldives	525
-Nepal	29694
-Pakistan	247504
-Sri Lanka	22971
-Brunei	458
-Cambodia	17423
-Indonesia	281190
-Laos	7664
-Malaysia	35126
-Myanmar	54133
-Philippines	114891
-Singapore	5789
-Thailand	71702
-Timor-Leste	1384
-Vietnam	100352
-Armenia	2943
-Azerbaijan	10318
-Bahrain	1569
+Colombia	52321
+Union of the Comoros	850
+Republic of the Congo	6182
+Cook Islands	14
+Costa Rica	5105
+Croatia	3896
+Cuba	11019
+Curacao	185
 Cyprus	1344
-Georgia	3807
-Iraq	45074
-Israel	9256
-Jordan	11439
-Kuwait	4838
-Lebanon	5773
-Oman	5049
-Qatar	2979
-Saudi Arabia	33264
-Palestine	5409
-Syria	23594
-Turkey	87270
-United Arab Emirates	10642
-Yemen	39390
-Belarus	9115
-Bulgaria	6795
 Czech Republic	10809
-Hungary	9686
-Poland	38762
-Moldova	3067
-Romania	19118
-Russia	145440
-Slovakia	5518
-Ukraine	37732
+Côte d'Ivoire	31165
+Dem. People's Republic of Korea	26418
+Democratic Republic of the Congo	105789
 Denmark	5948
+Djibouti	1152
+Dominica	66
+Dominican Republic	11331
+Ecuador	17980
+Egypt	114535
+El Salvador	6309
+Equatorial Guinea	1847
+Eritrea	3470
 Estonia	1367
+Eswatini	1230
+Ethiopia	128691
+Falkland Islands (Malvinas)	3
 Faroe Islands	54
+Fiji	924
 Finland	5601
+France	66438
+French Guiana	303
+French Polynesia	281
+Gabon	2484
+Gambia	2697
+Georgia	3807
+Germany	84548
+Ghana	33787
+Gibraltar	38
+Greece	10242
+Greenland	55
+Grenada	117
+Guadeloupe	376
+Guam	166
+Guatemala	18124
 Guernsey	64
+Guinea	14405
+Guinea-Bissau	2153
+Guyana	826
+Haiti	11637
+Holy See	0
+Honduras	10644
+Hungary	9686
 Iceland	387
+India	1438069
+Indonesia	281190
+Iran	90608
+Iraq	45074
 Ireland	5196
 Isle of Man	84
+Israel	9256
+Italy	59499
+Jamaica	2839
+Japan	124370
 Jersey	103
+Jordan	11439
+Kazakhstan	20330
+Kenya	55339
+Kiribati	132
+Kosovo	1700
+Kuwait	4838
+Kyrgyzstan	7073
+Laos	7664
 Latvia	1882
+Lebanon	5773
+Lesotho	2311
+Liberia	5493
+Libya	7305
+Liechtenstein	39
 Lithuania	2854
-Norway	5519
-Sweden	10551
-United Kingdom	68682
-Albania	2811
-Andorra	80
-Bosnia and Herzegovina	3185
-Croatia	3896
-Gibraltar	38
-Greece	10242
-Holy See	0
-Italy	59499
-Kosovo	1700
+Luxembourg	665
+Madagascar	31195
+Malawi	21104
+Malaysia	35126
+Maldives	525
+Mali	23769
 Malta	532
+Marshall Islands	38
+Martinique	346
+Mauritania	5022
+Mauritius	1273
+Mayotte	316
+Mexico	129739
+Micronesia	112
+Monaco	38
+Mongolia	3431
 Montenegro	633
+Montserrat	4
+Morocco	37712
+Mozambique	33635
+Myanmar	54133
+Namibia	2963
+Nauru	11
+Nepal	29694
+Netherlands	18092
+New Caledonia	289
+New Zealand	5172
+Nicaragua	6823
+Niger	26159
+Nigeria	227882
+Niue	1
 North Macedonia	1831
+Northern Mariana Islands	45
+Norway	5519
+Oman	5049
+Pakistan	247504
+Palau	17
+Panama	4458
+Papua New Guinea	10389
+Paraguay	6844
+Peru	33845
+Philippines	114891
+Poland	38762
 Portugal	10430
-San Marino	33
-Serbia	6773
-Slovenia	2118
-Spain	47911
-Austria	9130
-Belgium	11712
-France	66438
-Germany	84548
-Liechtenstein	39
-Luxembourg	665
-Monaco	38
-Netherlands	18092
-Switzerland	8870
-Anguilla	14
-Antigua and Barbuda	93
-Aruba	107
-Bahamas	399
-Barbados	282
-Bonaire	29
-British Virgin Islands	38
-Cayman Islands	73
-Cuba	11019
-Curacao	185
-Dominica	66
-Dominican Republic	11331
-Grenada	117
-Guadeloupe	376
-Haiti	11637
-Jamaica	2839
-Martinique	346
-Montserrat	4
 Puerto Rico	3242
+Qatar	2979
+South Korea	51748
+Moldova	3067
+Romania	19118
+Russia	145440
+Rwanda	13954
+Réunion	874
 Saint Barthélemy	11
+Saint Helena	5
 Saint Kitts and Nevis	46
 Saint Lucia	179
 Saint Martin	27
+Saint Pierre and Miquelon	5
 Saint Vincent and the Grenadines	101
+Samoa	216
+San Marino	33
+Sao Tome and Principe	230
+Saudi Arabia	33264
+Senegal	18077
+Serbia	6773
+Seychelles	127
+Sierra Leone	8460
+Singapore	5789
 Sint Maarten	42
+Slovakia	5518
+Slovenia	2118
+Solomon Islands	800
+Somalia	18358
+South Africa	63212
+South Sudan	11483
+Spain	47911
+Sri Lanka	22971
+Palestine	5409
+Sudan	50042
+Suriname	628
+Sweden	10551
+Switzerland	8870
+Syria	23594
+Tajikistan	10389
+Thailand	71702
+Timor-Leste	1384
+Togo	9304
+Tokelau	2
+Tonga	104
 Trinidad and Tobago	1502
+Tunisia	12200
+Turkmenistan	7364
 Turks and Caicos Islands	46
+Tuvalu	9
+Turkey	87270
+Uganda	48656
+Ukraine	37732
+United Arab Emirates	10642
+United Kingdom	68682
+Tanzania	66617
 United States Virgin Islands	85
-Belize	411
-Costa Rica	5105
-El Salvador	6309
-Guatemala	18124
-Honduras	10644
-Mexico	129739
-Nicaragua	6823
-Panama	4458
-Argentina	45538
-Bolivia	12244
-Brazil	211140
-Chile	19658
-Colombia	52321
-Ecuador	17980
-Falkland Islands (Malvinas)	3
-French Guiana	303
-Guyana	826
-Paraguay	6844
-Peru	33845
-Suriname	628
-Uruguay	3388
-Venezuela	28300
-Bermuda	64
-Canada	39299
-Greenland	55
-Saint Pierre and Miquelon	5
 USA	343477
-Australia	26451
-New Zealand	5172
-Fiji	924
-New Caledonia	289
-Papua New Guinea	10389
-Solomon Islands	800
+Uruguay	3388
+Uzbekistan	35652
 Vanuatu	320
-Guam	166
-Kiribati	132
-Marshall Islands	38
-Micronesia	112
-Nauru	11
-Northern Mariana Islands	45
-Palau	17
-American Samoa	47
-Cook Islands	14
-French Polynesia	281
-Niue	1
-Samoa	216
-Tokelau	2
-Tonga	104
-Tuvalu	9
+Venezuela	28300
+Vietnam	100352
 Wallis and Futuna Islands	11
+Western Sahara	579
+Yemen	39390
+Zambia	20723
+Zimbabwe	16340
diff --git a/scripts/developer_scripts/get_population_weights b/scripts/developer_scripts/get_population_weights
index 8a20ea461..5bffdccd3 100755
--- a/scripts/developer_scripts/get_population_weights
+++ b/scripts/developer_scripts/get_population_weights
@@ -3,7 +3,6 @@
 # This script generates a TSV file containing country names and population sizes.
 
 import argparse
-import datetime
 import os
 from pathlib import Path
 import pandas as pd
@@ -20,6 +19,7 @@ def export_population_weights(output):
     # ³ <https://github.com/urllib3/urllib3/issues/2653#issuecomment-1165307051>
     #   <https://www.ssllabs.com/ssltest/analyze.html?d=population.un.org>
     csv = Path(os.path.dirname(__file__)) / "data/WPP2024_TotalPopulationBySex.csv.gz"
+    source = 'the United Nations World Population Prospects'
 
     df = pd.read_csv(csv, usecols=['Location', 'LocTypeName', 'Time', 'PopTotal'], dtype='str')
 
@@ -27,7 +27,8 @@ def export_population_weights(output):
     df = df[df['LocTypeName'] == 'Country/Area']
 
     # Use data from the latest non-forecast year
-    df = df[df['Time'] == '2023']
+    year = '2023'
+    df = df[df['Time'] == year]
 
     # Rename columns to match names in metadata
     column_name_map = {
@@ -39,8 +40,9 @@ def export_population_weights(output):
     # Keep only the columns used above
     df = df[column_name_map.values()]
 
-    # Set country as index
+    # Set country as index and sort alphabetically
     df = df.set_index('country')
+    df = df.sort_index()
 
     # Rename countries to match values in metadata
     country_name_map = {
@@ -83,7 +85,7 @@ def export_population_weights(output):
     # Export
     with open(output, 'a') as f:
         print("# [DO NOT EDIT] This file was generated by scripts/developer_scripts/get_population_weights", file=f)
-        print(f"# Last updated on {datetime.date.today().strftime('%Y-%m-%d')}", file=f)
+        print(f"# Based on {year} population estimates from {source}", file=f)
         df.to_csv(f, index=True, sep='\t')