diff --git a/CHANGELOG.md b/CHANGELOG.md
index 789e197e4..e2115887c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,11 @@ Classify the change according to the following categories:
     ### Deprecated
     ### Removed
 
+## Develop - 2024-04-22
+### Changed
+- Updated `pop_year` and `income_year` used in call to EASIUR data (`get_EASIUR2005`) each to 2024, from 2020. 
+- Updated usd conversion used for EASIUR health cost calcs from USD_2010_to_2020 = 1.246 to USD_2010_to_2024 = 1.432
+
 ## v. 0.46.0
 ### Added 
 - In `src/core/absorption_chiller.jl` struct, added field **heating_load_input** to the AbsorptionChiller struct
diff --git a/src/core/financial.jl b/src/core/financial.jl
index d17925861..59a1aaef3 100644
--- a/src/core/financial.jl
+++ b/src/core/financial.jl
@@ -220,7 +220,7 @@ function easiur_costs(latitude::Real, longitude::Real, grid_or_onsite::String)
     end
     EASIUR_data = nothing
     try
-        EASIUR_data = get_EASIUR2005(type, pop_year=2020, income_year=2020, dollar_year=2010)
+        EASIUR_data = get_EASIUR2005(type, pop_year=2024, income_year=2024, dollar_year=2010)
     catch e
         @warn "Could not look up EASIUR health costs from point ($latitude,$longitude). {$e}"
         return nothing
@@ -232,13 +232,13 @@ function easiur_costs(latitude::Real, longitude::Real, grid_or_onsite::String)
     coords = g2l(longitude, latitude, datum="NAD83")
     x = Int(round(coords[1]))
     y = Int(round(coords[2]))
-    # Convert from 2010$ to 2020$ (source: https://www.in2013dollars.com/us/inflation/2010?amount=100)
-    USD_2010_to_2020 = 1.246
+    # Convert from 2010$ to 2024$ (source: https://www.in2013dollars.com/us/inflation/2010?amount=100)
+    USD_2010_to_2024 = 1.432
     try
         costs_per_tonne = Dict(
-            "NOx" => EASIUR_data["NOX_Annual"][x, y] .* USD_2010_to_2020,
-            "SO2" => EASIUR_data["SO2_Annual"][x, y] .* USD_2010_to_2020,
-            "PM25" => EASIUR_data["PEC_Annual"][x, y] .* USD_2010_to_2020
+            "NOx" => EASIUR_data["NOX_Annual"][x, y] .* USD_2010_to_2024,
+            "SO2" => EASIUR_data["SO2_Annual"][x, y] .* USD_2010_to_2024,
+            "PM25" => EASIUR_data["PEC_Annual"][x, y] .* USD_2010_to_2024
         )
         return costs_per_tonne
     catch
@@ -248,6 +248,7 @@ function easiur_costs(latitude::Real, longitude::Real, grid_or_onsite::String)
 end
 
 function easiur_escalation_rates(latitude::Real, longitude::Real, inflation::Real)
+    # Calculate escalation rate as nominal compound annual growth rate in marginal emissions costs between 2020 and 2024 for this location.
     EASIUR_150m_yr2020 = nothing
     EASIUR_150m_yr2024 = nothing
     try
@@ -284,7 +285,7 @@ Adapted to Julia from example Python code for EASIUR found at https://barney.ce.
 """
     get_EASIUR2005(
         stack::String, # area, p150, or p300
-        pop_year::Int64=2005, # population year
+        pop_year::Int64=2005, # population year (2000 to 2050)
         income_year::Int64=2005, # income level (1990 to 2024)
         dollar_year::Int64=2010 # dollar year (1980 to 2010)
     )
@@ -388,7 +389,7 @@ function get_EASIUR2005(stack::String; pop_year::Int64=2005, income_year::Int64=
                 setindex!(ret_map, v .* adj, k)
             end
         catch
-            throw(@error("income year is $(income_year) but must be between 1990 to 2024"))
+            throw(@error("EASIUR income year is $(income_year) but must be between 1990 to 2024"))
             return nothing
         end
     end
@@ -399,7 +400,7 @@ function get_EASIUR2005(stack::String; pop_year::Int64=2005, income_year::Int64=
                 setindex!(ret_map, v .* adj, k)
             end
         catch e
-            throw(@error("Dollar year must be between 1980 to 2010"))
+            throw(@error("EASIUR dollar year must be between 1980 to 2010"))
             return nothing
         end
     end
diff --git a/test/runtests.jl b/test/runtests.jl
index 069b5c136..dfa051a14 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1203,7 +1203,7 @@ else  # run HiGHS tests
             d["Site"]["latitude"] = 30.2672
             d["Site"]["longitude"] = -97.7431
             scen = Scenario(d)
-            @test scen.financial.NOx_grid_cost_per_tonne ≈ 4534.032470 atol=0.1
+            @test scen.financial.NOx_grid_cost_per_tonne ≈ 5510.61 atol=0.1
         end
 
         @testset "Wind" begin
diff --git a/test/test_with_xpress.jl b/test/test_with_xpress.jl
index 895c28062..60a1cbc13 100644
--- a/test/test_with_xpress.jl
+++ b/test/test_with_xpress.jl
@@ -666,7 +666,7 @@ end
     d["Site"]["latitude"] = 30.2672
     d["Site"]["longitude"] = -97.7431
     scen = Scenario(d)
-    @test scen.financial.NOx_grid_cost_per_tonne ≈ 4534.032470 atol=0.1
+    @test scen.financial.NOx_grid_cost_per_tonne ≈ 5510.61 atol=0.1
 end
 
 @testset "Wind" begin